CHAPTER No. 3 MOTION PHYSICS I1.Acceleration can be defined as
the change in velocity per unit _______.a) Displacementb) Distance
c) Timed) Area C2.The limit is called as:a) Instantaneous
accelerationb) Instantaneous velocity c) Average velocityd) Final
velocityA3.If the velocity of a body is decreasing, the
acceleration is:a) Positiveb) Negative c) Zerod) None of the
aboveB4.The acceleration due to gravity is denoted by:a) Gb) gc)
ad) hB5.The average acceleration of a body during time is given
by:a) b) c) d) VB6.The average acceleration of a body becomes its
instantaneous acceleration when:a) Time interval, tends to zerob)
tends to zeroc) tends to zerod) tends to zeroA7.The average
acceleration during any interval of time is equal to the
instantaneous acceleration when the body is moving with:a) Uniform
velocityb) Uniform accelerationc) Constant speedd) Negative
accelerationB8.A body continues its state of rest or uniform motion
unless acted upon by an unbalanced force. This is the:a) Law of
gravitationb) Third law of motionc) Second law of motiond) First
law of motionD9.The property of a body that opposes any change in
its state of rest or motion is called its:a) Inertiab) Massc)
Forced) EnergyA10.Mass is the quantity of _______ in a body.a)
Energyb) Inertiac) Weightd) MatterD11.The agent that causes a
change in the state of rest or motion of a body is known as:a)
Torqueb) Moment of inertiac) Forced) EnergyC12.A moving car whose
engine is switched off, comes to rest after some time due to:a)
Inertiab) Its Massc) Frictiond) Earths gravitationC13.According to
the second law of motion, acceleration is proportional to:a)
Forceb) Timec) Massd) DistanceA14.The mathematical form of Newtons
second law of motion is:a) m = b) m = Fac) F = d) F = maD15.One
Newton is a force that produces an acceleration of m/s2 in a body
of mass:a) 1 kgb) 2 kgc) 4 kgd) 8 kgB16.An inertial frame of
reference is one whose:a) Acceleration is zerob) Velocity is
changing with timec) Acceleration is uniformd) Inertia is not
zeroA17.According to the third law of motion, every action causes a
reaction which is _______ to it.a) Opposite and equalb) In the same
direction and equalc) Opposite but double in magnituded) In any
direction but equalA18.Two bodies of masses m1 and m2 are hanging
vertically over a pulley. Their acceleration is given by the
formula:a) a = gb) a = gc) a = gd) A19.The tension in the rope over
a pulley with masses m1 and m2 hanging on its ends is given by:a) T
= gb) T = gc) T = gd) T = gB20.When a body of mass m1 lying on a
frictionless horizontal surface is connected with another mass m2
hanging freely over a pulley, the acceleration produced in the
masses will be:a) a = gb) T = gc) T = gd) T = gA21.The tension in
case of a mass m1 lying on a horizontal surface and a mass m2
hanging over a pulley is given by:a) T = gb) T = gc) T = gd) T =
gC22.Two masses m1 and m2 are placed on a frictionless surface in
contact with each other. The acceleration produced in them by a
force is given by:a) = (m1 + m2)b) = (m1 - m2)c) = m1m2d) =
B23.Linear momentum of a body is the product of its:a) Mass and
accelerationb) Mass and velocityc) Force and massd) Energy and
timeB24.The impulse of a force is the product of:a) Force and
timeb) Force and velocityc) Force and massd) Energy and
massA25.Force can also be defined as the rate of change of:a)
Energyb) Velocityc) Momentumd) InertiaC26.The total linear momentum
of a system remains constant if:a) No external force is acting upon
itb) It has no energyc) It is freely falling under gravityd) No
frictional force is presentA27.Two bodies of masses m1 and m2
connected by a compressed spring are at rest. When the spring is
released the relation between velocities of both masses will be
given by:a) = b) = c) = -d) = -A28.Elastic collision is that
collision during which:a) Momentum is conservedb) Energy is
conservedc) Mass is conservedd) Angular momentum is
conservedA29.Impulse can be defined as the change in _______ of a
body by an impulsive force.a) Velocityb) Momentumc) Energyd)
AccelerationB30.When a number of bodies are such that they can
exert force upon one another and no external agency exerts a force
on them, they are said to form:a) An isolated systemb) An inertial
frame of referencec) Non-inertial frame of referenced) None of the
aboveA31.Two elastic balls collide with each other. The
relationship between their velocities before collision, V1 & V2
and after collision , & , is given by:a) V1 + V2 = + b) V1 - V2
= - c) V1 - = V2 - d) V1 - V2 = -D32.If two bodies of equal mass
collide elastically then:a) Their velocities are added to each
otherb) Their velocities are subtractedc) Their velocities do not
changed) They exchange their velocitiesD33.When a ball of mass m1
moving with velocity V1 collides elastically with another ball with
mass m2 and velocity V2 = 0, its velocity after collision will
be:a) = V1b) = V1c) = V1d) = V1A34.When a ball of mass m1 moving
with velocity V1 collides with another ball with mass m2 and
velocityV2=0, the velocity (V2 ) of m2 after collision will be:a) =
V1b) = V1c) = V1d) = V1C35.When a body of mass m moving with
velocity V collides elastically with another body of the same mass
and at rest then after the collision:a) Both of them come to restb)
Both move with the same velocity Vc) Both move with velocity d) The
first body comes to rest while the other moves with velocity
VD36.If a body whose mass is much less than a body at rest collides
with it elastically, then it bounces back with:a) Same velocityb)
Double velocityc) Half of the velocityd) No velocityA37.When the
mass of the colliding body is much larger than the mass of the body
at rest, its velocity after collision:a) Becomes doubleb) Becomes
halfc) Becomes zerod) Remains the sameA38.If the mass of a body,
moving with velocity V, is much larger than the body with which it
collides elastically, the velocity of the other body after
collision becomes:a) Vb) 2Vc) 3Vd) 4VB39.The force which resists
motion of a body is called:a) Force of frictionb) Fictitious
forcec) Reacting forced) None of the aboveA40.The force of static
friction is always _______ the applied force.a) Equal and in the
same direction tob) Equal and opposite toc) Less thand) More
thanB41.The force of maximum static friction is _______ the force
of sliding friction.a) Slightly less thanb) Slightly more thanc)
Equal tod) Half ofB42.Force of kinetic friction is proportional to
the:a) Applied forceb) Normal reactionc) Area of contactd)
VelocityB43.When a block placed on a horizontal rough surface is
about to slip under the action of an applied force, the value of
static friction is given by:a) Fsmax = Fnb) Fsmax = FKc) Fsmax =
FKd) Fsmax = FnD44.Force of kinetic friction given by:a) Fk = Fnb)
Fk = Fnc) Fk =Fsd) Fk = FsA45.According to Stokes law the force of
friction acting on a spherical ball of radius r moving with
velocity V in a fluid of viscosity is given by:a) FD = 6rVb) FD =
4r2Vc) FD = 2rVd) FD = 6rV2A46.Terminal velocity is the velocity of
a body moving in a fluid which attains a maximum value due to:a)
Gravityb) Fluid frictionc) Surface frictiond) Applied
forceB47.Hovercraft move on the surface of land and water on a
cushion of:a) Airb) Waterc) Cottond) FoamA48.The force acting on a
body of mass m is placed on an inclined plane making an angle with
the horizontal is:a) mg sinb) mg cosc) mg tand) mgA49.If a body
changes its position with respect to its surroundings then it is
said to be in state of _______.a) Motionb) Restc) Displacementd)
VelocityA50.If a body does not change its position with respect to
its surroundings then it is said to be in state of ________.a)
Motionb) Rest c) Displacementd) None of theseB51.The shortest
distance between two points in known as _______.a) Motionb) Rest c)
Displacementd) None of theseC52.Displacement is a _______
quantity.a) Vectorb) Scalarc) Positived) None of theseA53.The total
distance covered per unit time is called _______.a) Vectorb)
Velocityc) Speedd) DistanceC54.The formula for speed is represented
as _______.a) v = b) = c) v = d) None of theseA55.The S.I. unit OF
speed is _______.a) m/s2b) km/hc) m/sd) NC56.The distance covered
by a body in unit time in specified direction is called _______.a)
Speedb) Velocityc) Uniform velocityd) None of theseB57.The formula
for velocity is _______.a) = b) v = c) = d) None of
theseA58.Velocity is a _______ quantity.a) Scalarb) Vectorc)
Positived) NegativeB59.The dimension for velocity is _______.a) b)
c) d) A60.If a body covers unequal displacement in equal intervals
of time or equal displacement in unequal intervals of time, then it
is said to be moving with _______.a) Constant velocityb) Variable
velocityc) Average velocityd) None of theseB61.The formula for
average velocity is _______.a) Vav = b) Vav = c) Vav = d) None of
theseA62.The instantaneous velocity is calculated by the formula
_______.a) Vav = b) Vav = c) Vav = d) None of theseD63.The rate of
change of velocity is called _______.a) Uniform velocityb)
Velocityc) Accelerationd) None of theseC64.The formula for
acceleration is _______.a) = b) = c) = d) None of theseA65.The
acceleration is a _______ quantity.a) Positive b) Magnitudec)
Vectord) ScalarC66.The rate of decrease of velocity is called
_______.a) Retardation b) Accelerationc) Variable Accelerationd)
None of theseA67.The formula for instantaneous acceleration is
_______.a) inst = b) inst = c) inst = d) None of theseB68.There are
_______ laws of motion.a) Four b) Fivec) Sixd) ThreeD69.According
to first law of motion, A body continues its state of rest or
uniform motion in a straight line unless it is compelled by _______
impressed upon it.a) An unbalanced force b) Equal forcec) With
right accelerationd) None of theseA70.The property of a body that
opposes any change in its state of motion or rest, is called
_______.a) Second law of motionb) Law of inertiac) Third law of
motiond) None of theseB71.Newtons first law of motion is also
called _______.a) Law of inertiab) Second law of motionc) Third law
of motiond) None of theseA72.Newtons first law of motion gives us
the idea of _______.a) Law of inertiab) Forcec) Third law of
motiond) None of theseA73.Second law of motion is also known as
_______.a) Law of accelerationb) Law of inertiac) Law of motiond)
None of theseA74.According to second law of motion when a force is
applied on a body, the acceleration is produced in the direction of
the force which is directly proportional to the magnitude of the
applied force and _______ to the mass of the body.a) Also directly
proportionalb) Inversely proportionalc) Same directiond) Apposite
directionB75.The equation of second law of motion is _______.a) F =
Kab) F = Gac) F = d) F = maD76.If the mass of the body is 20 g and
it produces an acceleration of 4 m/s2, then find the value of
force?a) F = 80.04 Nb) F = 0.8 Nc) F = 8 Nd) F = 0.08 ND77.If a
force of 50 N is applied on a body whose mass is 5 kg find the
amount of an acceleration?a) 5 m/s2b) 1 m/s2c) 10 m/s2d) 100
m/s2C78.According to third law of motion, To every action, there is
always an equal but _______ reaction.a) Sameb) Positivec)
Accelerationd) OppositeD79.In motion of connected bodies, when both
the bodies are hanging vertically over a pulley, then the values of
tension T is _______.a) T = gb) T = gc) T = gd) T = gB80._______ is
defined as the product of the mass of the object and velocity.a)
Accelerationb) Momentumc) Average velocityd) Gravitational
forceB81.We can write the formula of the momentum _______.a) = mb)
F = mac) = md) = rA82.The S.I unit of momentum is _______.a) kg /
s2b) Kg m/sc) kg / sd) None of theseB83.The dimension for momentum
is a) b) c) d) A84.The _______ force is a force which acts on a
body for very short time.a) Impulsiveb) Negativec) Magnituded)
MomentumA85.The unit of impulse is _______.a) N/sb) N/s2c) Ns2d)
None of theseD86.The dimension of impulse is _______.a) b) c) d)
None of these A87.According to law of conservation of momentum, The
total momentum of the system before collision is _______ to the
total momentum of system after collision.a) Greaterb) Lessc)
Equald) None of theseC88.Ii elastic collision both energy and
_______ remain constant before and after collision.a) Momentum b)
Forcec) Accelerationd) VelocityA89.The force which apposes the
motion of the body is known as _______.a) Momentumb) Resistive
forcec) Frictiond) None of theseC90.The two main types of friction
are static friction and _______.a) Dynamic frictionb) Close
frictionc) Relative frictiond) None of theseA91.The law expresses
the drag Fd on a sphere of radius r moving with velocity v as
_______.a) Fd = 5 / rvb) Fd = 6 / rvc) Fd = 7 / rvd) None of
theseD92.In inclined plane, the acceleration of the body is
_______.a) a = g sinb) a = -g sinc) a = g cosd) a = -g cosA93.Force
of _______ is proportional to the normal reaction.a) Velocityb)
Kinetic frictionc) Accelerationd) None of theseB94.The distance
traveled by a body in one second is called.a) Speedb) Velocityc)
Average velocityd) AccelerationA95.The rate of change of
displacement is defined asa) Speedb) Velocityc) Accelerationd)
RetardationB96.If the values of instantaneous and average
velocities are equal, the body is said to be moving witha) Uniform
accelerationb) Uniform speedc) Variable velocityd) Uniform
velocityD97.Acceleration of bodies of different masses allowed to
fall freely isa) Different for different heightsb) Different for
different bodiesc) The samed) VariableC98.An acceleration of 1 m/s2
is produced in a body of mass 1 kg by a force ofa) One poundb) One
Newtonc) One dyned) One slugB99.If a body is moving with constant
velocity, thena) Its direction may be changingb) Its acceleration
is variablec) Its acceleration is zerod) None of the aboveC100.If a
body is moving along a circle with constant speed, thena) Its
velocity is uniformb) Its velocity is changingc) Its acceleration
is zerod) Its acceleration is increasingB101.If a body is moving
with constant speed in a circle, then its acceleration is
directeda) Towards the centreb) Away from the centrec) Tangent to
the circled) None of the aboveA102.Laws of motion are valid in a
frame of reference which isa) Inertialb) Non-inertialc) At restd)
None of the aboveA103.Laws of motion not valid in a system which
isa) At restb) Inertialc) Non-inertiald) Moving with uniform
velocityC104.The laws of motion give the relation betweena) Mass
and velocityb) Force and accelerationc) Velocity and accelerationd)
Mass and weightB105.If the slope of the velocity-time graph
increases at constant rate, with time, then the body is said to
havea) Uniform retardationb) Uniform negative accelerationc)
Average accelerationd) Uniform positive accelerationD106.Newtons
second law of motion is also calleda) Law of inertiab) Law of
accelerationc) Law of gravitationd) Law of thermodynamicsB107.The
force acting on a body of mass 10 kg falling under gravity isa) 98
Nb) 9.8 Nc) 0 Nd) 49 NA108.A body of mass 5 kg starts from rest and
falls freely. The distance covered by it in one second isa) 9.8 mb)
980 mc) 49 md) 4.9 mD109.A body is moving in a circle at a constant
speed. Which of the following statements is true?a) There is no
accelerationb) There is no force acting on itc) There is a force
acting at a tangent to the circled) There is a force acting towards
the centre of the circleD110.When a force is applied to a body,
several effects are possible. Which of the following effects could
not occur?a) The body rotatesb) The body speeds upc) The mass of
the body decreasesd) The body changes directionC111.What must be
changing when a body is accelerating uniformly?a) The force acting
on the bodyb) The velocity of the bodyc) The mass of the bodyd) The
speed of the bodyB112.A stone is dropped from a cliff. The time
during which it covers a distance of 490 m isa) 10 secb) 100 secc)
9.8 secd) 4.9 secA113.The braking force needed to bring a car of
mass 1200 kg to rest in 5 seconds when it is moving at 20 m/s isa)
6000 Nb) 4800 Nc) 2400 Nd) 1200 NB114.In equation F = ma, the mass
m isa) Rest massb) Variable massc) Inertial massd) Gravitational
massC115.The quantitative measure of inertia of a body isa) Its
massb) Its weightc) Its velocityd) ForceA116.When a horse pulls a
cart, the force that causes the horse to move forward is the
forcea) The cart exerts on horseb) The horse exerts on cartc) The
horse exerts on the groundd) The ground exerts on horseD117.When a
person jups off the ground, the reaction force of the ground isa)
Greater than the weight of the personb) Smaller than the weight of
the personc) Equal to the weight of the persond) ZeroA118.The
property of body that opposes any change in its state of motion or
rest isa) Weightb) Torquec) Momentumd) InertiaD119.Motion of rocket
in space is the example ofa) First law of motionb) Second law of
motionc) Third law of motiond) Law of gravitationC120.Rate of
change of momentum isa) Weightb) Forcec) Massd)
AccelerationB121.When a bullet is fired by a gun, the gun recoils
backward with a velocitya) Less than that of the bulletb) Equal to
that of the bulletc) Greater than that of the bulletd) None of the
aboveA122.In elastic collision between two bodiesa) Energy is
conserved but momentum is notb) Both momentum and energy are
conservedc) Momentum is conserved but energy is notd) Both momentum
and energy are not conservedB123.Newtons third law of motion states
thata) When two bodies interact, action and reaction are equal and
oppositeb) Acton and reaction produce the same acceleration in two
bodiesc) Inertia and mass are the samed) Inertia and force are the
sameA124.Inertia of a body is measured in terms ofa) Its velocityb)
Its massc) Its weightd) The applied forceB125.The attraction of
earth on a body is calleda) Massb) Inertialc) Accelerationd)
WeightD126.A ball is hit so that it moves straight up in the air
and reaches the maximum height in 2 seconds. Its initial velocity
isa) 19.6 m/sb) 39.2 m/sc) 9.8 m/sd) 4.9 m/sA127.Which of the
following is truea) F = m/ab) a = m/Fc) m = a/Fd) a = F/mD128.Earth
is taken to be aa) Non-inertial frameb) Inertial framec) Reference
axesd) None of the aboveB129.Which law is applicable in the motion
of the rocket in spacea) Conservation of massb) Conservation of
energyc) Conservation of angular momentumd) Conservation of linear
momentumD130.In the absence of any force acting on a bodya) Its
momentum changes with distanceb) Its momentum is conservedc) Its
momentum is not conservedd) Its momentum changes with timeB131.A
force which always opposes the motion of a body calleda) Static
forceb) Gravitational forcec) Frictional forced) Impulsive
forceC132.Stokes law is applicable toa) Motion through horizontal
surfaceb) Motion through free spacec) Motion through viscous
mediumd) Motion through non-resistive mediumC133.A fog droplet
falls vertically with an acceleration while touching grounda) Equal
to gb) Less than gc) Greater than gd) Equal to zeroB134.The
terminal velocity of a body falling vertically through a fluida)
Increases with increase in massb) Decreases with increase in massc)
Remains same with increase in massd) None of the aboveA135.The
terminal velocity in case of spherical droplet isa) Inversely
proportional to the radius of the dropletb) Directly proportional
to the radius of the dropletc) Inversely proportional to the square
of the radius of the dropletd) Inversely proportional to the cube
of the radius of the droplet A136.Neglecting friction, the motion
of a body on an inclined plane is independent of thea) Area of the
bodyb) Volume of the bodyc) Density of the bodyd) Mass of the
bodyD137.The acceleration of a spherical ball on a smooth inclined
plane is maximum when the angle of inclination to the horizontal
isa) 90ob) 60oc) 30od) 0oA138.A constant mass undergoes finite
uniform acceleration when the resultant force acting on ita) Is
proportional to the velocityb) Is zeroc) Is constant but not zerod)
Increases uniformly with respect to timeC139.Newtons third law
concerns the forces of interaction between two bodies. Which of the
following statements relating to the third law is not correct?a)
The two forces must act on two different bodiesb) The two forces
are always opposite in directionc) The two forces are at all times
equal is magnituded) The two forces are equal and opposite so the
bodies are in equilibriumD140.When a force of 4N acts on a mass of
2 kg for a time of 2s, what is the rate of change of momentum?a) 1
kg m s-2b) 2 kg m s-2c) 4 kg m s-2d) 8 kg m s-2D141.A force of 20 N
acts on a body of mass 100 g. The acceleration produced in the body
is a) 20 m s-2b) 2 m s-2c) 2000 m s-2d) 200 m s-2B142.A stone
dropped from the top of a building which reaches the ground in 4
seconds. The height of the building isa) 4 mb) 78.4 mc) 19.6 md)
39.2 mB143.A car reaches a velocity of 300 km hr-1 after covering
distance of 0.5 km. The acceleration of the car isa) 6.9 ms-2b) 90
ms-2c) 9.6 ms-2d) 3 ms-2A144.A force actin gon 5 kg mass causes an
acceleration of 0.2 ms-2 in it. The magnitude of applied force isa)
10 Nb) 2.5 Nc) 1 Nd) 0.04 NC145.An acceleration of 0.4 ms-2 is
produced in a body when a force of 8N acts on it. The mass of the
body isa) 3.2 kgb) 20 kgc) 0.05 kgd) 50 kgB146.A car suffers head
on collision with another car with 100 N force of impact for a
short time of 2 milliseconds. The impulse is given by a) 0.2 NSb)
50 NSc) 200 NSd) 0.02 NSA147.A 60 kg car is moving at a speed of 54
km hr-1. Its linear momentum is a) 3240 Kg ms-1b) 900 Kg ms-1c)
11664 Kg ms-1d) 18.5 Kg ms-1B148.A heavy body moving with 10 ms-1
collides elastically with very light body at rest. After collision,
the light body moves at a velocity ofa) Zero ms-1b) 10 ms-1c) 20
ms-1d) 5 ms-1C149.A light particle moving with 20 ms-1 collides
elastically with heavy body at rest. After collision, the velocity
of the heavy body isa) Zerob) 20 ms-1c) 10 ms-1d) 40
ms-1A150.Acceleration in a body is always produced in the direction
of a) Torqueb) Forcec) Momentd) VelocityB151.Acceleration is
defined asa) Rate of change of velocityb) Rate of change of speedc)
Rate of change of displacementd) Rate of change of distanceA152.Vf
= _______ + ata) 2asb) Vitc) sd) ViD153.The quantity of matter in a
body is calleda) Massb) Forcec) Velocityd) MomentumA154.Inertial
mass and gravitational mass area) Weightb) Proportionalc)
Identicald) OppositeC155.The motion of a body along a straight
linea) Vibratory motionb) Circular motionc) Uniform motiond)
Rectilinear motionD156.The slope of the velocity-time graph
representsa) Torqueb) Velocityc) Speedd) AccelerationD157.Bodies
which fall freely under gravity provide good example of motion
undera) Variable accelerationb) Uniform accelerationc) Uniform
velocityd) None of theseB158.The change in velocity per unit time
is calleda) Torqueb) Velocityc) Accelerationd) DisplacementC159.If
a body is moving uniformly in a straight line the force on the body
isa) Maximumb) Minimumc) Zerod) AverageC160.Rate of change of
momentum is proportional to the impressed force and takes placea)
Opposite to the direction in which the force actsb) In the
direction in which the force actsc) Perpendicular to the direction
in which the force actsd) In the direction at an angle of 45o to
the direction of forceB161.A train is running at 25 kilometers per
hour, find the time taken by it to travel 15 kilometers.a) 20
minutesb) 25 minutesc) 28 minutesd) 36 minutesD162.A body falling
freely under the action of gravity hasa) No weightb) Minimum
weightc) Maximum weightd) No effects on its weightA163.The law of
inertia was first time formulated bya) Plankb) Keplerc) Newtond)
GalileoD164.Inertia of body is measured in term ofa) Its weightb)
Its massc) Its velocityd) Its reactionB165.Newtons second law of
motion is also calleda) Law of inertiab) Law of gravitationc) Law
of accelerationd) Law of inertial frameC166.Newtons third law
states thata) Inertia and mass are the sameb) Action and reaction
on the same bodyc) Inertia and the force are the samed) To every
action there is always an equal and opposite reactionD167.The
quantity of motion present in a body is calleda) Accelerationb)
Momentc) Momentumd) VelocityC168.Inertia mass and gravitational
mass area) Proportionalb) Identicalc) Weightsd) Identical when
there is no frictionB169.Momentum = mass _______a) Forceb)
Densityc) Accelerationd) VelocityD170.In case of book lying on a
table.a) Action of book on table and reaction of table on book are
equal and opposite and are inclined to vertical.b) Action and
reaction are equal and opposite and act perpendicular to the
surfaces of contact.c) Action and reaction are equal but act in the
same direction.d) Action and reaction are not equal but are in
opposite direction.B171.Swimming is possible on account ofa) First
law of motionb) Second law of motionc) Third law of motiond)
Newtons law of gravitationC172.When we jump out of a boat standing
in water it movesa) Forwardb) Backwardc) Side waysd) None of the
aboveB173.When a train stops suddenly passengers in the running
train feel an instant jerk in the forward direction becausea) The
back of seat suddenly pushes the passengers forwardb) Inertia of
rest stops the train and takes the body forwardc) Upper part of the
body continues to be in the state of motion whereas the lower part
of the body in contact with seat remains at restd) Nothing can be
said due to insufficient dataC174.A car is moving with a uniform
velocity on a rough horizontal road. Therefore, according to
Newtons law of motiona) No force is being applied by its engineb) A
force is surely being applied by its enginec) An acceleration is
being produced in the card) The kinetic energy of the car is
increasingB175.We can derive Newtons a) Second and third laws from
the first lawb) First and second laws from the third lawc) Third
and first laws from the second lawd) All the three laws are
independent of each otherA176.A jet plane lies in the air becausea)
The gravity does not act on bodies moving with high speedsb) The
thrust of the jet compensates for the force of gravityc) The flow
of air around the wings causes an upward force, which compensates
for the force of gravityd) The weight of air whose volume is equal
to the volume of the plane is more than the weight of the plane
B177.A man is at rest in the middle of a pond on perfectly smooth
ice. He can get himself to the shore by making use of Newtons a)
First law b) Second lawc) Third lawd) All the lawsB178.Inertia is
that property of a body by virtue of which the body isa) Unable to
change by itself the state of restb) Unable to change by itself the
state of uniform motionc) Unable to change by itself the direction
of motiond) Unable to change by itself the state of rest and of
uniform linear motionD179.A cannon after firing recoils due to a)
Conservation of energyb) Backward thrust of gases producedc)
Newtons third law of motiond) Newtons first law of
motionC180.Newtons second law gives the measure ofa) Accelerationb)
Forcec) Momentumd) Angular momentumB181.A man getting down a
running bus falls forward becausea) Due to inertia of rest, road is
left behind and man reaches forwardb) Due to inertia of motion
upper part of body continues to be in motion in forward direction
while feet come to rest as soon as they touch the road.c) He leans
forward as a matter of habitd) Of the combined effect of all the
three factors stated in a), b) and c)B182.When swims across a
flowing river, maximum energy is spent ina) First 1/3 of the
distanceb) Second 1/3 of the distancec) Last 1/3 of the distanced)
Equal energy is spent throughoutA183.The maximum static friction
isa) Equal to the dynamic frictionb) Always less than the dynamic
frictionc) Always greater than the dynamic frictiond) Sometimes
greater and sometimes equal to dynamic frictionC184.If the normal
force is doubled, the coefficient of friction isa) Not changedb)
Halvedc) Doubledd) Tripled A185.The maximum static frictional force
isa) Equal to twice the area of the surface in contactb)
Independent of the area of surface in contactc) Equal to the area
of surface in contactd) None of the aboveB186.Which of the
following statements is not truea) The coefficient of friction
between two surfaces will increase if the surface are made roughb)
When a body slides on a surface the force of friction acts opposite
to the direction of applied forcec) Rolling friction is more than
sliding frictiond) The coefficient of friction between wood and
wood is less than 1C187.Maximum value of static friction is
calleda) Limiting frictionb) Rolling frictionc) Normal frictiond)
Coefficient of frictionA188.The limiting friction between two
bodies in contact is independent ofa) Nature of the surfaces in
contactb) The area of surfaces in contactc) Normal reaction between
the surfacesd) The materials of the bodiesB189.The constant ratio
which the limiting friction bears with the normal reaction is
calleda) Angle of frictionb) Cone of frictionc) Coefficient of
frictiond) None of the aboveC190.Friction can be reduced bya)
Providing lubricantsb) Ball bearingsc) Roller bearingsd) Any of the
aboveA191.The frictional force which comes into play after the
motion has commenced is calleda) Static frictionb) Dynamic
frictionc) Limiting frictiond) None of the aboveC192.The resistance
offered to the movement on one body upon another is known asa)
Surface tensionb) Frictional resistancec) Limiting frictiond)
Rolling frictionB193.The coefficient of fraction depends upona)
Nature of surfaceb) Area of contactc) Shape of the surfaced) All of
the aboveA194.Maximum static friction is alwaysa) Less than the
dynamic frictionb) Equal to dynamic frictionc) Greater than the
dynamic frictiond) Has no relation with dynamic frictionC195. If
two bodies collide each other without the application of the
external forces, the total momentum will:a) Continuously changeb)
Remain constantc) Increased) DecreaseB196.Limiting friction bears a
constant ration to the normal reaction. This ratio depends upona)
Nature of the materialb) Shape of the surfacesc) Area of the
surfacesd) Normal reactionA197.The external unbalance force
required to accelerate a body is proportional to the product of the
mass of the body and the acceleration produced is calleda) First
law of motionb) Law of inertiac) Second law of motiond) Third law
of motionC198.The characteristic of weight is a) A vector
quantityb) Not fixed propertyc) Depend upon the location as well as
the motion of frameworkd) All of the aboveD199.If the velocity of a
body does not increase by equal amounts in equal intervals of time
it is said to havea) Uniform accelerationb) Variable accelerationc)
Average accelerationd) Instantaneous accelerationB200.The
substances used as moderators always consist ofa) Lighter atomsb)
Heavier atomsc) Atoms of comparable massesd) None of the
aboveC201.The unit of linear impulse is the same as that ofa)
Forceb) Momentumc) Energyd) None of the aboveB202. After the
collision the kinetic energy of the system is not conserved
although the momentum is conserved, the collision is known as:a)
Inelasticb) Angular collisionc) Elastic collisiond) Thermalised
collisionA203.A cricket ball is hit so that it travels straight up
in air and acquires 3 seconds to reach the maximum height. Its
initial velocity isa) 10 ms-1b) 15 ms-1c) 29.4 ms-1d) 12.2
ms-1C204.Temperature changes when two balls collide. Which one of
the following is conserved?a) Velocityb) Kinetic energyc) Both of
themd) MomentumD205.A body is thrown vertically upward with initial
velocity 9.8 msec-1. It will attain heighta) 9.8 mb) 19.8 mc) 4.9
md) 29.4 mC207.The distance covered by a body in a unit time is
called a) Velocityb) Retardationc) Accelerationd) SpeedD208.The
unit of velocity in SI unit is a) Kilometer per minuteb) Meter per
secondc) Centimeter per secondd) Kilometer per secondB209.The
change in velocity per unit time is called a) Speedb) Uniform
velocityc) Accelerationd) RetardationC210.The unit of acceleration
in SI unit is a) km-s2b) cm s-2c) m s-2d) m s2C211.When the values
of average and instantaneous acceleration are equal the body is
said to be moving with a) Average accelerationb) Uniform
accelerationc) Positive accelerationd) None of the aboveB212.The
laws of motion show the relation between a) Mass and weightb) Mass
and velocityc) Mass and accelerationd) Force and
accelerationD213.The dimensions of weight are given by a) LT-1b)
LT2c) MLT-2d) ML2TC214.The dimensions of force are a) M LT-2b)
M2LT-2c) N-T-2d) ML2TA215.The acceleration of a body moving with
uniform velocity is a) Zerob) Not zeroc) Not uniformd)
VariableA216.The unit of force or weight in SI unit is a) Dyne
(dn)b) Kilogram (kg)c) Newton (N)d) CentimeterC217.Mark the correct
relation a) a = b) a = c) a = d) All of the themD218.Acceleration
is defined as a) Rate of change of distanceb) Rate of change of
displacementc) Rate of change of velocityd) Rate of change of
speedC219.A 5kg mass is falling freely, the weight in the frame of
reference of the mass, will be a) 5Nb) 9.8Nc) 19.6Nd) ZeroD220.The
discus used by athlete has a mass of 1kg. Its weight in Newton is
a) 98Nb) 100Nc) 80Nd) 9.8ND221.A body starting from rest covers a
distance of 0.45 km and acquires a velocity of 300 km/hr. Its
acceleration will be a) 0.092 ms-2b) 0.5 ms-2c) 7.71 ms-2d) 0.15
ms-2C222.The weight of a body falling freely will be a) mg + 6vrb)
mg - 6vrc) mgd) ZeroD223.The average and instantaneous velocities
will be equal when a body moves with a) Constant (uniform)
velocityb) Constant accelerationc) Variable accelerationd)
RetardationA224.Distance covered by a freely falling body in 2
seconds will be a) 4.9 mb) 19.6 mc) 39.2 md) 44.1 mB225.When a
climber reaches the top of a mountain a) His mass is now greaterb)
His weight is now greaterc) His mass is now slightly smallerd) His
weight is now slightly smallerD226.What would be magnitude and
direction of acceleration which would make the balance reading zero
a) Zerob) 9.8 ms-2 downwardc) 9.8 ms-2 upwardd) 1 ms-2 B227.It is
true that a) m = a/Fb) F = m/ac) a = F/md) a = m/FC228.A mass of
5kg moves with an acceleration of 10ms-2 force on it is a) 10Nb)
50Nc) 2Nd) 15NB229.The distance covered by a body in time t
starting from rest is a) at2/2b) Vtc) a2t/2d) at2A230.Pull of earth
on a mass of 20 kg on the surface of earth is a) 20Nb) 196Nc)
19.6Nd) 1960NB231.The product of mass of a particle and its
velocity is called a) Kinetic energyb) Potential energyc) Linear
momentumd) ForceC232.A force of 50N acts on a body for 10 seconds.
What will be the change in momentum? a) 200N-sb) 500N-sc) 800N-sd)
5N-sB233.A force which always opposes the motion of a body is
called a) Impulsive forceb) Force of friction (frictional force)c)
Static frictiond) Gravitational forceB234.According to Stokes law
the viscous or drag force Fd on rain droplet of radius r moving
with velocity v is a) 6rv2b) c) d) 6rvD235.The SI unit of viscosity
is a) Kgm-1s-2b) Kgm-1s-1c) Kgms-2d) Kg-m-1-sB236.The Hover craft
can attain speed of a) 150 km hr-1b) 60 km hr-1c) 80 km hr-1d) 100
km hr-1A237.When a body moves up a rough inclined plane it is acted
upon by a) Two forcesb) One forcec) Three forcesd) Four
forcesC238.Poise is the unit of a) Co-efficient of viscosityb)
Co-efficient of elasticityc) Gravitational forced) None of
theseA239.When a constant force acts on a mass m initially at rest,
the velocity acquired in a direction is proportional toa) mb) c) d)
B240.Machine parts are jammed is due to a) Increase in surface
tension of lubricantb) Increase in viscosity of lubricantc)
decrease in surface tension of lubricantd) decrease in viscosity of
lubricantB241.The dimensional formula for co-efficient of viscosity
is a) MoLoTob) ML-1T-3c) ML-2T-2d) ML-1T-1B242.A honey drop is
falling through air from a height. Its radius is r, its velocity is
v and the co-efficient viscosity is. The viscous force on it will
be a) b) c) d) 6vrD243.Force of friction on a car wheel of mass m
is a) mgb) c) mgd) A244.Fluid friction is large at a) Low speedsb)
Very low speedsc) High speedsd) Moderate speedsC245.In case of an
elastic collision between two bodies a) Both momentum and energy
are not conservedb) Both momentum and energy are conservedc)
Momentum is conserved but not energyd) Energy is conserved but not
momentumB246.The orbital speed of the earth around the sun is
approximately. a) 30,000 mphb) 50,000 mphc) 60,000 mphd) 70,000
mphD247.When two bodies separate instantaneously after collision.
The collision is said to be a) Perfectly elasticb) Perfectly
inelasticc) Partially elasticd) Partially inelasticA248.A lead ball
of 50 kg and an iron ball of 25 kg both of the same diameter are
allowed to fall from the top of a building. When they are 15 meters
above the ground, they have identical a) P. E.b) K. E.c) Momentad)
AccelerationD249.Which of the following statements is correct? a)
The co-efficient of static friction is greater than the
co-efficient of kinetic frictionb) The co-efficient of static
friction is less than the co-efficient of kinetic frictionc) The
co-efficient of static friction is equal to the co-efficient of
kinetic frictiond) A250.If a gunman standing in a stationary boat
in water fires the gun in a horizontal directiona) The boat will
move away from the targetb) The boat will move in the direction of
targetc) The boat will spin aroundd) The boat will capsizeA251.
When the two bodies having same masses collide with each other
while one body is at rest then the velocity of the stationary body
will:a) Remain constantb) Become zeroc) Increased)
DecreaseC252.When raindrops of same mass fall from a height under
gravity a) The terminal velocity is the same for all dropsb) The
terminal velocity goes on increasingc) The terminal velocity goes
on decreasingd) They fall with terminal velocity directly
proportional to their sizeA253. If two bodies collide, then the
impulse, which is the product of force an time, has:a) Units of
forceb) Unit of weightc) Units of velocityd) Unit of momentumD254.A
force of 1000 N acts on a body for 0.01 sec. and changes its
velocity from 10 m/s to 20 m/s, what will be the impulse? a) 100
N-secb) 50 N-secc) 10 N-secd) 5 N-secC255.When a ball rolls down an
inclined plane making an angle of 30o with horizontal, its
acceleration will be a) 9.8 m/s2b) 4.9 m/s2c) 2.25 m/s2d) 1.125
m/s2B256.The acceleration of a body sliding on an inclined plane is
maximum if the angle of inclination is a) 30ob) 45oc) 60od)
90oD257.If a body slides along a frictionless plane inclined at an
angle, then the acceleration of the body isa) g cosb) g sinc) cosd)
sinB258.The terminal velocity of a spherical droplet of mass
density, is directly proportional toa) The square of the radius of
dropletb) The radius of dropletc) Half of the radius of dropletd)
The square of the diameter of dropletA259.Typical values of
co-efficient of static friction for smooth surfaces, range from
0.01 toa) 2 for rough surfacesb) 1.9 for rough surfacesc) 1.7 for
rough surfacesd) 1.5 for rough surfacesD260.The mass of a body
weighing 39.2 N in kg isa) 3b) 4c) 5d) 6B261.The instantaneous
velocity is equal to the average velocity if body moves with aa)
Uniform velocityb) Variable velocityc) Variable accelerationd)
Uniform accelerationA262.Applied force F on a body of mass m,
moving with acceleration a isa) m/ab) a/mc) mad) m + aC263.The
direction of linear acceleration produced in a moving body is
always the same as the direction ofa) Velocityb) Torquec) Massd)
ForceD264.If is the change in velocity of a body during time
interval then the acceleration of the body isa) () ()b) /c) -d)
/D265.If a body is moving with constant velocity of 10 m/sec
towards north, then its acceleration isa) 0b) 10 m/sec2c) 20
m/sec2d) 5 m/sec2A266.Acceleration is defined as the rate ofa)
Change of distanceb) Change of velocityc) Change of speedd) Change
of momentumB267.In SI system of units, the velocity is measured
ina) Centimeter per secondb) Meter per secondc) Foot per secondd)
Miles per secondB268.The shortest distance traveled by a body
between two fixed points is known asa) Distanceb) Angular
displacementc) Amplituded) Linear displacementD269.Whenever a body
changes its position with respect to its surroundings, it is said
to be in a state ofa) Restb) Motionc) Equilibriumd) None of the
aboveB270.If a body moves about a fixed point or axis its motion is
calleda) Rectilinear motionb) Rotatory motionc) To and fro motiond)
Vibratory motionB271.The to and fro motion about a point executed
at regular intervals of time is known asa) Rectilinear motionb)
Rotatory motionc) To and fro motiond) Vibratory motionD272.The
physical quantity which represents the motion of an object is
called _______.a) Velocityb) Accelerationc) Displacementd)
TorqueA273.The measure of the difference in position between two
points or places is called _______.a) Displacementb) Velocityc)
Accelerationd) MomentumA274.If the velocity of the body is uniform,
i.e. not changing with time, the velocity-time graph isa) A curved
lineb) A straight linec) A circular lined) None of the
aboveB275.The slope of the velocity-time graph representsa)
Accelerationb) Speedc) Torqued) VelocityA276.In the
displacement-time graph if the slope of the line increasesa) The
speed decreasesb) The acceleration decreasesc) The average velocity
becomes greaterd) The acceleration increasesC277.The change in
velocity per unit time is calleda) Velocityb) Accelerationc)
Displacementd) TorqueB278.Acceleration is measured in units ofa)
ms-2b) ms-1c) N-sd) None of the aboveA279.In a velocity-time graph
if the graph is a straight line parallel to time-axis, then its
acceleration will bea) Zerob) Minimumc) Maximumd) None of the
aboveA280.The distance covered by a moving object in one second is
called _______.a) Velocityb) Accelerationc) Momentumd) None of the
aboveD281.Speed in a given direction is called _______.a)
Velocityb) Displacementc) Accelerationd) None of the aboveA282.The
velocity and acceleration of a body moving with uniform speed in
circle are _______.a) Parallelb) Oppositec) Mutually
perpendiculard) None of the aboveC283.In SI units the value of
acceleration due to gravity g is _______.a) 9.8 ms-2b) 9.8 ms2c)
9.8 ms-1d) 9.8 msA284.Two balls having different masses are thrown
upwards simultaneously towards the roof of a building they will
reach roof _______.a) Simultaneouslyb) Heavy ball firstc) Light
ball firstd) None of the aboveA285.The motion of pendulum is an
example of _______.a) Rotatory motionb) Vibratory motionc)
Rectilinear motiond) None of the aboveB286.The intrinsic measure of
a bodys resistance to acceleration, when a force is applied on it
is calleda) massb) Inertial massc) Relative massd) None of the
aboveB287.A frame which is not being accelerated is calleda) A
reference axesb) A non-inertial frame of referencec) An inertial
frame of referenced) None of the aboveB288.Newtons second law of
motion in terms of momentum can be defined asa) Change in
momentumb) Change in impulsec) Rate of change of momentumd) None of
the aboveC289.The product of force and the duration of impact is
calleda) Torqueb) Couplec) Impulsed) InertiaC290.Elastic collisions
are those in whicha) Linear momentum is conservedb) Potential
energy is conservedc) Kinetic energy is conservedd) Both linear
momentum and kinetic energy are conservedD291.A force which resists
the motion of a body is calleda) Impulsive forceb) Force of
frictionc) Inertiad) None of the aboveB292.The force of static
friction Fs between any two surfaces in contact is opposite to the
applied force and can have values given by the equationa) Fs Fnb)
Fs Fnc) Fs = Fnd) None of the aboveC293.The force of kinetic
friction is opposite to the direction of motion and is given bya)
Fk Fnb) Fk Fnc) Fk = Fnd) None of the aboveC294.The value of and
depends on the nature of surfaces, but is generally _______.a) Less
than b) Greater than c) Equal to d) None of the
aboveA295.Coefficient of viscosity is analogous to the _______.a)
Coefficient of frictionb) Coefficient of static frictionc)
Coefficient of kinetic frictiond) None of the aboveC296.The Stokes
law expresses the drag Fd on a sphere of radius r moving with
velocity v as _______.a) Fd = 6rvb) Fd = 6rv2c) Fd = 6vd) None of
the aboveD297.The terminal velocity of a sphere of given material
(fixed ) varies directly with the _______.a) Square of the radiusb)
Cube of the radiusc) Reciprocal of the radiusd) None of the
aboveA298.Such machines which are used for transportation over
water, marshes and land are called _______.a) Aeroplancesb)
Satellitesc) Hover craftsd) None of the aboveC299.In machines,
friction is minimized by using _______.a) Hover crafts b)
Lubricantsc) Waterd) None of the aboveB300.Any surface making an
angle with horizontal is calleda) Wedgeb) Inclined planec) Leverd)
ScrewB301.Empirical formula for friction in solids is given asa) Fs
= Fnb) Fd = 6rvc) Fs = Fnd) None of the aboveA302.Empirical formula
for friction in fluids is given asa) Fs = Fnb) Fd = 6rvc) Fs = Fnd)
None of the aboveB303.A sheet of paper can be withdrawn from under
bottle of milk without dropping it if the paper is jerked out
quickly. This is an example of:a) Inertia b) Weight c) Acceleration
d) The third law of motionA304.If the velocity of a body changes it
may be termed as:a) Instantaneous velocityb) Speed of the bodyc)
Magnitude of displacementd) DecelerationD305.Acceleration is a
physical quantity that can be specified completely by:a) Both
magnitude and directionb) Only magnitudec) Only directiond) None of
the aboveA306.The shortest distance between two points in a
specific direction is called.a) Distanceb) Accelerationc) Speedd)
DisplacementD307.Change in velocity per unit time is equal to:a)
Distance/timeb) Displacement/timec) Accelerationd)
Force/massC308.Inertia of a body is measured in terms ofa) Its
weightb) Its applied forcec) Its reactiond) Its massD309.Two bodies
are moving in opposite direction with speed v. What is the
magnitude of their relative velocity?a) 0b) vc) d) 2vD310.A car
starts from rest and travels forward with constant acceleration.
Which of the following statements is true:a) The power delivered by
the engine decreasesb) The momentum of the car remain constantc)
The power delivered by the engine increasesd) The power delivered
by the engine remains constantD311.A train is brought to a sudden
stop its:a) Acceleration is reduce to zerob) Velocity is reduced to
zeroc) Average acceleration is reduce to zerod) None of theseB312.A
body moving with constant velocity be:a) Changing its direction of
motionb) In equilibriumc) Acceleratingd) Traveling in a
circleB313.When a body is moving at constant speed, its average
speed is equal to:a) Thrice its speedb) Twice its speedc) Half of
that its speedd) Its speed D314.A car is moving with uniform
velocity then its acceleration is:a) Zerob) Constantc) Increasedd)
DecreasedA315.The area between a velocity-time graph and the time
axis is equal to the:a) Velocityb) Distancec) Displacementd)
AccelerationB316. Which of the following is not a perfectly elastic
collision:a) Capture of an electron by a protonb) Collision between
glass ballsc) Man jumping on to a moving cartd) All three B317.Two
freely falling objects, one 10 kg and one 20 kg are dropped from
the same height at the same time. Air resistance is negligible.
Which of the following statements is (are) true?i.Both objects have
the same potential energy at the top.ii.Both objects fall with the
same accelerationiii.Both objects have the same speed just before
hitting the ground
a) iii onlyb) i and ii onlyc) ii and iii onlyd) i, ii and iii
C318.Terminal velocity is usually defined as thea) Velocity of
shock wavesb) Velocity of light in waterc) Velocity at which air
resistance balance gravityd) All of the aboveC319.The velocity of
falling rain drop attain limited value because of:a) Surface
tensionb) Upthrust due to airc) Viscous force exerted by aird) Air
currentC320.A stone and a piece of paper are simultaneously
released from the top of a vertical evacuated tube, which one of
the following statements is correct?a) The stone and paper remain
at restb) The stone and paper strike the base of the tube at the
same timec) The stone strikes the base of the tube before the
paperd) The stone strikes the base of the tube after the
paperB321.A body falling freely under the action of gravity has.a)
Minimum weightb) Maximum weightc) No weightd) Variable
weightC322.When raindrops of equal mass fall under the influence of
gravity, their terminal velocity is.a) Same for the dropsb)
Inversely proportional to their size c) Directly proportional to
their sized) None of theseA323.The acceleration due to gravity in a
falling body is due to:a) Its motionb) Pull of the moonc) Pull of
the earthd) Pull of the sunC324.A boy sitting in train moving at a
constant velocity throws a ball straight up into the air the ball
will drop.a) Behind himb) In front of himc) In his handd) Beside
himC325.A boy remains at rest or continues to move, with uniform
velocity unless acted upon by a/an.a) A balanced forceb) Torquec)
Momentumd) Unbalanced forceD326.The laws of motion deal with:a)
Force and accelerationb) Width and lengthc) Vertical and horizontal
distanced) Viscosity and densityA327.If the graph between mass and
acceleration is straight line then:a) m ab) a 1/mc) m 1/a2d) m2
1/aA328.A boy sitting in a moving train is facing the engine. He
tosses a coin up. The coin falls behind him. The train is moving.a)
Forward with uniform speedb) Backward with uniform speedc) Forward
with uniform accelerationd) Backward forward with uniform
accelerationC329.Newtons laws of motion are applicable to:a)
Inertial frames of referenceb) Relativistic frames of referencec)
All frames of referenced) None of theseA330.A spaceship orbiting
the earth is an example of Newtons:a) First lawb) Second lawc)
Third lawd) Law of gravitationD331.Newtons first law of motion
gives definition of:a) Forceb) Inertiac) Both a) & b)d)
NoneB332.During free fall of air friction is negligible then
acceleration of bodies of different masses is:a) The same for all
the massesb) Different for different massesc) Different for
different vertical positionsd) Both a) & b)A333.A body moving
with velocity V can be stopped by a force F in distance X. Same
body moving with velocity 2V can be stopped by a force 2F in a
distance equal to:a) Xb) 2Xc) 4Xd) X/2B334.A car travels at 30
kilometers / hour for 15 kilometers. It then increases its average
speed to 60 km/hr. for the next 30 kilometers. The overall average
speed for the 45 km is.a) 30 km/hrb) 45 km/hrc) 35 km/hrd) 40
km/hrB335. When two bodies having the identical masses move along
the same straight line with different velocities in the same
direction collide with each other after the collision their
velocities will:a) Interchange with one anotherb) Remain the samec)
The one body has acquired all the velocity &d) Both gain equal
velocities second becomes stationary A336.Boat A is moving at 40
km/hr and boat B is moving at 20 km/hr, which one of the following
is not a possible value of their relative velocity?a) 10 km/hrb) 20
km/hrc) 30 km/hrd) 40 km/hrC337.A sailor walks south wards at 3m/s
across a ship which is traveling west at 4m/s the velocity of the
sailor with respect of the sea is.a) 5 m/s in south of westb) 7 m/s
in south of westc) 1 m/s in west of southd) 5 m/s in west of
southA338.An acrobats jumps from a height of 5m on to a sea-saw.
The velocity with which he hits the sea-saw is: (g =10m/s2).a) 20
m/sb) 30 m/sc) 10 m/sd) ZeroC339.A car starting from rest moves
down on an inclined road with a uniform acceleration. It travels
for 100 m in 10 sec. The speed of the car at the end of 10 sec is
nearly.a) 10 m/sb) 20 m/sc) 40 m/sd) 100 m/sB340.How many meters a
5 kg ball starting from rest fall freely in 1 sec?a) 9.8 mb) 4.9
mc) 19.6 md) 2 mB341.How long will a car with an acceleration of 4
m/s2, take to go from 30 m/s to 50 m/s?a) 10 secb) 20 secc) 5 secd)
30 secC342.Two identical balls are thrown vertically upwards. One
with an initial speed twice that of the other. he ball with the
greater initial speed will reach to a height.a) times that of the
otherb) Twice that of the otherc) 4 times that of the other d) 8
times that of the otherC343.The body is initially at rest, it
starts with an acceleration of 5m/s2 is 10 sec. The total distance
covered by it is.a) 50 mb) 500 mc) 250 md) 300 mC344.A stone
dropped from a tower takes 5 seconds to reach the earth. Its
velocity at the earth is.a) 49 m/sb) 160 ft/sc) 9.8 m/sd) a) &
b) have the same meaningA345.What is the average velocity of a car
which covers a distance of 30 miles in 0.5 hours?a) 15 mphb) 30
mphc) 45 mphd) 60 mphB346.A bomb is dropped from an airplane moving
horizontally with a speed of 600 kms/hr. If the air resistance is
negligible, the bomb will reach the ground in 5 sec when the
altitude of the plane is approximately.a) 80 mb) 100 mc) 125 md)
800 mC347.A body dropped from the top of a tower 200ft high has an
initial speed of 25 ft/sec. What will be velocity of the body after
1 second of fail?a) 52 ft/secb) 57 ft/secc) 62 ft/secd) 48
ft/secB348.A ball is thrown vertically up and comes back to ground
in four second. The initial velocity of the ball is: (taking g =
9.8 m/s)a) 4 m/sb) 19.6 m/sc) 25 m/sd) 30 m/sB349.If the resultant
force on an object is zero the object will move with:a) Constant
speedb) Constant velocityc) Constant decelerationd) Variable
decelerationB350.The force of friction, generated to resist the
motion, occurs between connecting media in:a) Liquidsb) Solidsc)
Gasesd) All of theseD351.The force per unit length is:a) Pressureb)
Stressc) Straind) Surface tensionD352.The concept of force might
best be described as:a) The push or pullb) A quantity tending to
change the shape or state of motion of a body c) Energy in motiond)
Power transmitted from one place to anotherB353.Stokess law holds
for:a) Bodies of all shapeb) Motion through free spacec) Horizontal
motion of particlesd) Motion through a viscous mediumD354.When a
force is applied to a body, several effects are possible. Which of
the following effects could not occur?a) The body speed upb) The
body rotatesc) The changes directiond) The mass of the body
decreasesD355.The magnitude of the resultant of two forces may be
increased by:a) Increasing the angle between themb) Decreasing the
angle between themc) Drawing a parallelogram to represent themd)
None of the aboveB356.The strongest of the forces is:a) The
electromagnetic forceb) The weak forcec) The strong nuclear forced)
The gravitational forceC357.Machine parts are jammed in winter due
to:a) Increase in viscosity of the lubricantb) Decrease in
viscosity of the lubricantc) Increase in surface tension of the
lubricant d) Decrease in surface tension of lubricantA358.A body
moves with constant speed in a straight line. Which of the
following statements must be true?a) No net force cats on the
bodyb) A single constant force acts on the body in the direction of
motion c) A single constant force acts on the body in the direction
opposite to the motion d) A constant net force acts on the body in
the direction of motionA359. Which of the following statement is
incorrect?a) Most of the collisions on the macroscopic scale are
inelastic collisionb) In a perfectly inelastic collision, there is
a complete loss of K. E.c) Forces involved in elastic collision are
conservative in natured) Oblique collision is that on which the
colliding bodies do not move along the same straight line
pathB360.A bird sits on a telegraph wire 3 km long. The additional
tension produced in the wire is resultant:a) Infiniteb) Equal to
the weight of the birdc) Less than the weight of the birdd) More
than the weight of the birdC361.To drive nail into a wall as far as
possible with an below, the head of the hammer should have:a) Large
mass and slow speedb) Large mass and high speedc) Small mass and
high speedd) Small mass and slow speedB362.When a body is
stationarya) There is no force acting on itb) The forces acting on
it are not in contact with itc) The forces acting on it are
balancedd) The body is in vacuumC363.A truck towing a trailer is
accelerating on a level road. The force exerted by the truck on the
trailer isa) Equal to the force the trailer exerts on the truckb)
Greater than the force the trailer exerts on the truckc) Less than
the force the trailer exerts on the truckd) Equal to the force the
trailer exerts on the roadB364.Walking on the ground is an example
ofa) Frictionb) Third law of motionc) Motiond) TorqueB365.In
bicycles etc, sliding friction is converted into rolling friction
with the help of _______.a) Wheelsb) Inclined planesc) Greased)
Ball bearingsD366.If the applied force on a body increases, the
friction force b/w body and surface of sliding be:a) Increasedb)
Decreasedc) Remain constantd) None of theseA367.The frictional
resistance between its various layers of fluids is called:a)
Viscous dragb) Viscosityc) Frictiond) Up thrustB368.If there is no
external force applied to a system, then the total momentum of that
system:a) Turn to zerob) Remains constantc) Is maximumd) Is
minimumB369.The impulse of a force during the interaction of two
bodies can be calculated as the product of:a) Force and distanceb)
Force and massc) Force and timed) Mass and accelerationC370.If two
bodies of equal mass collide elastically thena) Their velocities
are added to each otherb) Their velocities are subtractedc) Their
velocities do not changed) They exchange their velocitiesD371.If is
difficult to stop a body moving with a greater velocity than
another body which is moving with a lesser velocity, this is due to
its.a) Massb) Velocityc) Accelerationd) MomentumD372.A light body
collides with a very large mass at rest. It bounces off at the
velocity _______ initial velocity.a) Equal tob) More thanc) Less
thand) None of theseA373.If the rate of change of momentum with
respect to time is zero, then:a) The momentum is a function of
timeb) The momentum is not conservedc) The momentum is constantd)
Some force actsC374.A rocket works on the principle of conservation
of:a) Massb) Energyc) Linear Momentumd) Angular momentumC375.When a
very massive body collide with a stationary body having very little
mass, the velocity of the lighter body after collision will be:a)
Equal to the velocity of massive bodyb) Greater than the velocity
of massive bodyc) Less than velocity of massive bodyd) None of the
aboveB376.In an elastic collision b/w a very massive body at rest
and a light of very high velocity, the velocity of light body after
collision.a) Decreasesb) Remains samec) Is same in magnitude but
opposited) First increases then decreasesC377.Momentum of a moving
mass is the amount of:a) Energy possessed by bodyb) Inertia
possessed by a bodyc) Work possessed by a bodyd) Motion possessed
by a bodyD378.Impulse of a force is _______ quantity.a) Vectorb)
Scalarc) Physicald) ChemicalA379.The rate of change of linear
momentum of a body is equal toa) The applied torqueb) The applied
forcec) Impulsed) None of the aboveB380._______ is also called the
quantity of motion.a) Accelerationb) Momentumc) Forced)
EnergyB381.A bullet fired from a rifle with the velocity V, has
_______.a) Very much energyb) Very large mass c) Potential energyd)
Kinetic energyD382.A photon is allowed to hit a cricket ball, there
will be _______ of the ball.a) A change in positionb) A change in
momentumc) A change in position & momentumd) No change in
momentum & positionC383.When a bullet is fired from gun, the
velocity of gun is.a) Lesser than that of the bulletb) Equal to
zeroc) Equal to that of the bulletd) Greater than of the
bulletA384.The acceleration of a spherical ball on a smooth
inclined plane is maximum, when the angle of inclination with the
horizontal isa) 0ob) 90oc) 60od) 80oB385.In an inclined plane,
velocity of the body is max. When the inclination of the plane is
a) 30ob) 60oc) 45od) 90oD386.A force of 10 N gives an acceleration
of 2 m/s2 to a mass of 5 Kg. The same force would produce an
acceleration of:a) 4 m/s2 when acting on a mass of 10 Kgb) 4 m/s2
when acting on a mass of 2.5 Kgc) 10 m/s2 when acting on a mass of
2 Kgd) 5 m/s2 when acting on a mass of 10 KgB387.10 N force given
an acceleration of 2ms-2 to 5 Kg mass, which of the following is
true for the same force?a) Impulsive force is of 10 N-Sb) K. E. of
the object is 10 joulesc) Power applied is of 20 wattd) Weight of
the object is 49 ND388.A boy with mass 60 Kg is carrying a bag of
flour weighing 30 N. What is the reaction that the floor exerts on
the boy? a) 318Nb) 628Nc) 700Nd) 330NA389.A 10 kg fragment falling
towards that earth has a net downwards acceleration of 5 m/s2. The
net downwards force acting on the fragment is: a) 5 Nb) 10 Nc) 50
Nd) 98 NC390.A car is traveling at 15 m/s and come to a sudden stop
and takes 10 seconds to stop. If the average breaking force is 3000
N, find the mass of the car. a) 2000 kgb) 2 kgc) 3000 kgd) 150
kgA391.If a force of 10 N makes on angle of 30o with x-axis, its
y-component is given by: a) 8.66 Nb) 5.0 Nc) 4.33 Nd) 0.866 NB392.
The statement, The total momentum of our isolated system of bodies
is constant is called the law of:a) Conservation of massb)
Conservation of energyc) Conservation of momentumd) Conservation of
forceC393.In a tug of war match one side is pulling with a force of
three thousand Newton. What force will be applied on the other side
to keep it in equilibrium? a) Zerob) 3000 Nc) 6000 Nd) 15000
NB394.The net force acting on the body of mass 10 kg moving with
uniform velocity of 4 cms-1 is: a) 40 Nb) 4 Nc) 4 Nd) ZeroD395.An
Eskimo is pulling a sledge across level snow. The sledge has a mass
of 25 kg. The Eskimo pulls with a horizontal force of 60 N and the
constant force of friction is 20 N. The acceleration of the sledge
is. a) 0.80 m/s2b) 0.625 m/s2c) 1.6 m/s2d) 1.8 m/s2C396.A force of
40 N is needed to set a 10 Kg steel box moving across a wooden
floor. The coefficient of static friction is. a) 0.04b) 0.25c)
0.40d) 4C397.A car of mass 800 kg is towing a trailer of mass 200
kg, both are accelerating steadily at 0.50 m/s2. They are getting
faster, Assuming the road is frictionless, the forward force of
road on the driver wheels of the car will be a) 40 Nb) 50 Nc) 500
Nd) 20 NC398.The coefficient of static friction for a metal on ice
is 0.5 The forces need to set a 50kg box is motion is (g = 10m/s2)
a) 0.5 Nb) 50 Nc) 250 Nd) 25 NC399.A body of mass 5 kilograms is
moving towards east with a velocity of 10m/sec, its momentum will
be: a) 150 Newtonb) 150 kgsc) 100 Newtond) None of the aboveD400.A
particle having a mass 0.5 kg is projected under gravity with a
speed of 98 ms-1 at an angle of 30o. The magnitude of the change in
momentum in N/sec of the particle after 10 seconds is.a) 0.5b) 49c)
98d) 490C401.A mass of 5kg, possess a momentum of 50kg m/s, when
moves with the speed of: a) 5 m/sb) 10 m/sc) 20 m/sd) 45
m/sB402.Two masses of 10kg and 8kg respectively, are moving
vertically by the help of a string passed over a frictionless
pulley. What will be the downward acceleration of 10kg mass (g =
10m/s2) a) 1.11 m/s2b) 10 m/s2c) 8 m/s2d) NoneA403.Two masses of
10kg and 8kg respectively, are moving vertically by the help of a
string passed over a frictionless pulley. What will be the downward
tension of 10kg mass (g = 10m/s2) a) 1.11 m/s2b) 10 m/s2c) 88.8
m/s2d) NoneC404.Body A and B have same masses and placed 2 cm part
on a uniform surface. If body is A is pushed towards the body B
with velocity of 20 m/s. What will be the velocity of A after an
elastic collision with B. a) 20 m/sb) 40 m/sc) Zerod) 30
m/sC405.Two forces of 6N and 8N can produce a resultant of. a) 0
Nb) 1 Nc) 10 Nd) 18 NC406.The resultant force of 12 N acts for 5 s
on a mass of 2 Kg. the change in momentum of the mass is: a) 20 Kg
m/sb) 50 Kg m/sc) 60 Kg m/sd) 80 Kg m/sC407.An accelerated rocket
of mass 2 kg, reaches to a speed of 50 m/s. the magnitude of
momentum of gasses ejected by the rocket is: a) 50 N-secb) 100
N-secc) 200 N-secd) 25 N-secB408.If the velocity of the body is
increased to 100% then linear momentum of the body increases to: a)
50%b) 100%c) 10%d) 35%B409.Rocket of mass 5000kg ascends with an
acceleration of 2m/sec2. The upward force on the mass is _______ N.
(g=10 m/s2)a) 6000 Nb) 60,000 Nc) 600,000 Nd) ZeroB410.A 0.2 kg
bullet is fired from a 5 kg gun with velocity 20 m/s, the recoil of
the gun is: a) 8 m/sb) 0.8 m/sc) 10 m/sd) 20 m/sB411.The direction
of the instantaneous velocity at a point is always: a) Along that
pointb) Along the tangent at that pointc) Perpendicular to the
tangent at that pointd) Opposite to that pointB412.If a body
continuously changes its position with respect to the surroundings,
it is said to possess. a) Equilibriumb) Motionc) Vibrationd) None
of the aboveB413.If a body moves with uniform velocity, then the
distance time graph is: a) Hyperbolab) Parabolac) Straight lined)
CurveC414.The displacement made in unit time is called: a)
Instantaneous velocityb) Average velocityc) Velocityd)
SpeedC415.Velocity is the rate of change of: a) Displacementb)
Distancec) Speedd) MomentumA416.Acceleration is defined as: a) The
rate of change of speedb) The rate of change of velocityc) The rate
of change of momentumd) The rate of change of
displacementB417.Speed is the magnitude of the: a) Accelerationb)
Velocityc) Momentumd) Average velocityB418.If a body is moving with
uniform velocity the average and instantaneous velocity have: a)
Different value at each pointb) Same value at each pointc) Being
parallel to each otherd) None of the aboveD419.A body, which does
not change its position with respect to time, is said to be at: a)
Restb) Equilibriumc) Same stated) MotionA420.A curved distance-time
graph is obtained when body is moving with: a) Variable velocityb)
Variable accelerationc) Same speedd) Uniform velocityA421.The
gradient distance-time graph determine the: a) Accelerationb)
Average speedc) Velocityd) Instantaneous velocityB422.The
acceleration of a body is equal to zero, when the body is moving
with: a) Constant speedb) Uniform velocityc) Variable speedd)
Changed directionB423.The greater the gradient of the
displacement-time graph, the: a) Larger is the velocity of the
bodyb) Smaller is the velocity of the bodyc) Larger is the
displacement of the bodyd) Smaller is the average speedA424.The
term is defined as: a) Linear accelerationb) Average accelerationc)
Instantaneous accelerationd) Variable accelerationC425.Negative
acceleration is also called: a) Retardationb) Relaxationc)
Re-accelerationd) None of theseA426.The motion of a body is said to
be uniformly accelerated rectilinear motion when it is moving with:
a) Uniform speedb) Uniform accelerationc) Uniform velocityd)
Constant momentumB427.An object starting from rest accelerates
uniformly, which of the following is not true: a) Its kinetic
energy is proportional to its displacementb) Its speed is
proportional to the square root of its displacementc) Its kinetic
energy is proportional to the square of its speedd) Its velocity is
proportional to the square of the elapsed timeC428.An object
covering distance in direct proportion to the square of time
elapsed. What conclusion might you draw about its acceleration? a)
It is increasingb) Remains constantc) Come zerod) Nothing is
certainB429.The displacement of a body is zero. The distance
covered: a) Is zerob) Is not zeroc) May or not be zerod) Depends
upon the accelerationC430.In order to locate the exact position of
a moving body, after a certain interval of time, we need to know
directly: a) Acceleration and velocityb) Speed and directionc)
Velocity and directiond) Distance and accelerationB431.Kinematics
is a part of mechanics, which deals with the description of motion:
a) In terms of forceb) In terms of energyc) Without involving
forced) Nothing is certainC432.A particle has moved from one
position to another position: a) Its distance is zerob) Its
displacement is zeroc) Neither distance nor displacement is zerod)
Average velocity is zeroC433.The force acts on the body then the
acceleration produced is directly proportional to the: a) Forceb)
Velocityc) Speedd) MassA434.Which of the following changes when a
particle is moving with uniform velocity? a) Speedb) Velocityc)
Accelerationd) Position vectorD435.If a ball thrown upward, its
velocity: a) Decreases, and least at the highest pointb) Remains
constantc) Decreases and comes to zero at the highest pointd)
Remain increasingC436.The acceleration due to gravity in a free
falling body is due to: a) Pull of the earthb) Its motionc)
Increasing accelerationd) Increasing momentumA437.The gravitational
pull of the earth gives the _______ to a free falling body: a)
Uniform velocityb) Constant massc) Uniform accelerationd) Uniform
weightC438.If a small body falls freely near the earth, its
acceleration: a) Increasesb) Decreasesc) Is zerod) Remains the
sameD439.Dropping from rest, body x falls freely for 4 seconds and
body y falls freely for 2 seconds. Comparing with body, body x
falls: a) Half as farb) The same distancec) Twice as fard) Four
times as farD440.A coin C is project horizontally at the same time
as another coin D is released and allowed to fall. If resistance is
neglected and both start at the same height: a) C & D will both
reach ground at the same timeb) C will reach the ground firstc) D
will reach the ground firstd) The masses of the coins must be
known, before decide itA441.A Spaceship is traveling from our
galaxy to the Andromeda Galaxy, in the deep space where the
gravitational field due to surrounding galaxies is zero, then if
the drive motors are off then ship must be: a) Stationaryb)
Decrease in speedc) Increase in speedd) Maintaining present
speedD442.When a body falls freely under gravity: a) It moves with
constant velocityb) It moves with constant speedc) It moves with
constant accelerationd) It covers equal distances in equal interval
of timeC443.If a ball is just let fall from the window of a moving
train, the ball hit the ground, following a:a) Circular pathb)
Parabolic pathc) Hyperbolic pathd) Elliptical pathB444.If a car is
traveling due south with a decreasing speed, then the direction of
the cars acceleration is:a) Due eastb) Due westc) Due northd) Due
southC445.If a body suddenly stops then its _______ is zero:a)
Initial velocityb) Final velocityc) Accelerationd)
MomentumB446.With the increase in mass, the force required to
produce the acceleration:a) Increasesb) Decreasesc) Doublesd)
HalvedA447.A car is moving on a straight road with uniform speed.
What are the forces acting on the car?a) Its weight balanced by the
reaction of the roadb) Its mass balanced by the accelerationc) The
weight of the car and the velocity of the card) All of the
aboveA448.When a body is stationary:a) There is no force acting on
itb) The forces acting on it are not in contact with itc) The
forces acting on it balance each otherd) The body is in
vacuumC449.The agency, which when applied to a body, changes or
tends to change, its state of rest or of uniform motion:a)
Momentumb) Accelerationc) Inertiad) ForceD450.The ratio of the
force applied on a body to the acceleration produced by that force
is called:a) Weightb) Massc) Tensiond) MomentumB451.The force
arises from the roughness of surfaces of two bodies in contact
is:a) Gravitational forceb) Force of attractionc) Friction freed)
None of the aboveD452.In C. G. S. system the unit of force is:a)
Newtonb) Erg.c) Dyned) JouleC453.When a falling object reaches a
speed where force of air resistance is equal to its weight it:a) Is
flyingb) Will begin to slow downc) Has reached its terminal speedd)
All of the above C454.When the friction between the surface of an
inclined plane and an object is equal to the component of the
weight of the object parallel to the plane, the object:a) Remain at
rest on the planeb) Moves down the plane with acceleration equal to
g sinc) Moves down the plane with acceleration equal to gd) Moves
down the plane without any accelerationD455.Which one of the
following is not true:a) Force can change the magnitude of the
velocityb) Force can change the direction of velocityc) Force can
produce acceleration or decelerationd) Force can reduce the mass of
a bodyD456.The force exerted by a string when it is subject to pull
is:a) Gravitational forceb) Accelerationc) Tensiond)
InertiaC457.The property of fluids to which they resist their own
flow is called:a) Velocityb) Viscosityc) Surface tensiond)
InertiaB458.If the applied force F is increased, then the force of
friction f_______.a) Increasesb) Decreasesc) Remain the samed)
Continuously varyingA459.Sliding friction is slightly _______ than
the limiting friction:a) Greaterb) Lessc) Equald) None of
theseB460.Bodies moving through fluids (liquids or gases)
experience a retarding force, which is called:a) Coefficient of
frictionb) Coefficient of viscosityc) Coefficient of dynamicsd)
None of the aboveD461.The maximum value of force of friction is
known as:a) Static frictionb) Limiting frictionc) Sliding
frictiond) Dynamic frictionB462.Which one of the following surfaces
in contact has maximum co-efficient of friction?a) Wood and woodb)
Steel and steelc) Rubber and dry concreted) Rubber and wet
concreteB463.Which of the following should be decreased to
transport a massive cylinder by rolling on a flat surface?a)
Co-efficient of dynamic frictionb) Limiting frictionc) Normal
frictiond) WeightA464.The wheels are made circular because:a) Less
material is usedb) Rolling friction is less than sliding frictionc)
It is easier to inflate themd) It is easier to deflate themB465.The
tires are made of rubber and not of iron because:a) Friction
between concrete and iron is higher than the friction between
rubber and concreteb) Friction between concrete and iron is lower
than the friction between rubber and concretec) Rubber is deeper
than irond) Iron tires will produce soundA466.Aeroplanes, Jets etc.
are streamlined to reduce:a) Dynamic frictionb) Sliding frictionc)
Rolling frictiond) Fluid frictionD467.A horse pulls a card harder
during the first few steps because:a) Limiting friction is higher
than the kinetic frictionb) Kinetic friction is higher than
limiting frictionc) Sliding friction is higher than rolling
frictiond) Friction force stops acting after few stepsA468.When a
body moves up a rough inclined plane it is acted upon by:a) One
forceb) Two forcesc) Three forcesd) Four forcesD469.The use of
wheel and ball bearing is based on the fact that:a) Sliding
friction can be converted into rolling frictionb) Rolling friction
can be converted into sliding frictionc) Static friction can be
converted into dynamic frictiond) None of theseA470.It is difficult
to move a cycle along the ground with breaks on because:a) Sliding
friction is more than rolling frictionb) Rolling friction is
greater than sliding frictionc) Sliding friction opposes motion on
the roadd) Rolling friction opposes motion on the road A471.A block
has weight W and it held against a vertical wall by applying a
horizontal force F. Then minimum value of F is:a) Less than Wb)
Equal Wc) Greater than Wd) Not settled by dataD472.The rate of
change of momentum is _______ the force acting on it:a) Greaterb)
Smaller thanc) Equal tod) Varies continuously withC473.If the rate
of change of momentum with respect to time is zero, then:a) The
momentum is a function of timeb) The momentum is not conservedc)
The momentum is constantd) Some force actsD474.If no unbalanced
force acts on the system then:a) Its momentum is a function of
timeb) Its momentum is not a function of timec) Its momentum
changes with distanced) Its momentum is conservedD475.A system of
particles, on which no external force acts though the particles of
the system interact with each other, is called an:a) Isobaric
systemb) Isolated systemc) Adiabatic systemd) Enclosed
systemB476.It is difficult to stop a body moving with a greater
velocity than another body which is moving with a lesser velocity.
This is due to:a) Accelerationb) Momentumc) Forced) SpeedB477.A
group of objects whose mutual interaction is much greater than
their interaction with other objects can frequently be treated
as:a) Isolatedb) Disturbedc) Non-isolatedd) PhysicalA478.Due to the
application of impulse during the collision between the bodies, the
momentum is:a) Changedb) Remain constantc) Increasedd)
DecreasedA479.Impulse of a force is _______ quantity:a) Vectorb)
Scalarc) Physicald) ChemicalA
