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Chapter 3The Rock and Fossil
RecordZAP!
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Speed in a given direction is known as
Velocity
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STEAL ONE!
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This is the unit for force
Newton
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STEAL TWO!
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MOTION
• An objects change in position over time is known as
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The rate at which velocity changes over time is known as:
Acceleration
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Combination of all the forces acting on an object
Net Force
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LOSE A TURN
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11
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This the distance an object travels divided by the time it takes to travel that distance.
Speed
A push or pull
ForceReturn
?
13
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ZAP!
This is the difference between balanced and unbalanced forces.
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Balanced – 0N (not moving)Unbalanced >0N (moving)
Force that opposes motion
___FRICTION_____
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GIVE ONE!!!
16
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What is kinetic friction?
Friction in motionReturn
Gravitational force depends on these 2 things:
Mass and DistanceReturn
Choose one player that’s NOT on your
team and put him or her ON your team!!
19
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These are the 4 types of friction:
Rolling, SlidingStatic, Fluid
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What are 3 things you could use to reduce the amount of friction?
Lubricants, rolling, smooth surface
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STEAL THREE!
22
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• When does the gravity between 2 objects increase?
Increase mass or decrease distance
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STEAL ONE!
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When does static friction occur?
When a force is applied but there is no motion
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This is known as the force of attraction between objects due to their masses.
Gravity Return
GIVE ONE!!!
27
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What is the measure of the gravitational force on an object?
WeightReturn
GIVE ONE!!!
29
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How are mass and weight different? (3 ways)
Units ToolLocation Return
Choose one player that’s NOT on your
team and put him or her ON your team!!
31
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The acceleration due to gravity is equal to this variable.
9.8 m/s2
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GIVE ONE!!!
33
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This is produced by the vibrations of electrically charged particles.
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Light Energy
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This is the energy that comes from changes in the nucleus of an atom
Nuclear
GIVE ONE!!!
36
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This is when an objects air resistance is equal to its force of gravity.
Terminal Velocity
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GIVE TWO!!!
38
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This person believed that the rate at which an object falls does not depend on its mass.
Galileo Return
LOSE A TURN
40
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These are the 2 motions involved in projectile motion.
Horizontal and Vertical
Why do you have to aim above the target when playing darts?
In projectile motion, gravity will pull the object down.
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STEAL ONE!
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This is when free fall occurs.
Only the force of gravity is acting on an object.
In projectile motion, this motion is constant.
Horizontal Return
STEAL TWO!
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TRUE
Orbiting objects are in free fall? True or false?
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GIVE ONE!!!
48
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In projectile motion, why does the object increase vertically?
Force of gravity
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Acceleration due to gravity on Earth is __9.8 m/s2______
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GIVE ONE!!!
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_____kinetic energy___ is the energy of all motion.
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STEAL ONE!
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?
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ZAP!
______Galileo_____________ argued with Aristotle's theory of gravity.
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ZAP!
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ZAP!
• Acceleration depends on force and __mass____
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_________Mechanical Energy__is the total of potential and kinetic energy.
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LOSE A TURN
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As the speed of falling object ________increases__________ the air resistance increases.
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STEAL TWO!
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________ENERGY______ is the ability to do work.
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• Intrusions are younger than the layers they cut across
Air resistance depends on shape, size, and _____speed______________
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?
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ZAP!
The formula for Kinetic Energy is
KE= mv2/2
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This is the constant velocity of a falling object when the force of air resistance is equal to the force of
gravity .
Terminal velocity
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Free fall can only occurSpace or vacuum ??
68
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GIVE ONE!!!
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Plants change _____energy into chemical energy.
Light
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LOSE A TURN
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??
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Momentum is mass x _velocity_
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ZAP!
The formula for gravitational potential energy is
GPE= weight x height ORGPE = m x g x h
??
74Return
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In photosynthesis ___________ energy is used to make new substances.
Light ??
?
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ZAP!
In _____FISSION______ an atom is split into two
smaller nuclei.
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STEAL ONE!
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When you wind an elastic band on a toy airplane it has ______________ energy.
Elastic Potential energy ??
79
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Centripetal force is an unbalanced force that
causes objects to travel in a circular path
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STEAL TWO!
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______________ is the curved path an object follows when thrown near the surface of Earth.
Projectile Motion ??
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LOSE A TURN
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The ____________________ states that any time objects collide, the total amount of momentum stays the same.
The law of conservation of momentum
??
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_____________ is the resistance of an object to move.
Inertia
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STEAL ONE!
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Pushing off the wall of a swimming pool will propel you backwards, this is an example of Newton’s ____________ Law
3rd??
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GIVE ONE!!!
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Whenever one force exerts a force on a second object, the second object exerts an equal and ________opposite________ force on the first.
89Return
Choose one player that’s NOT on your
team and put him or her ON your team!!
90
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??
This is a change from one energy form to anotherEnergy Conversion
LOSE A TURN
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A moving car has ___kinetic_________ energy.
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STEAL ONE!
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An example of mechanical energy is
a roller coaster, etc
??
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LOSE A TURN
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Your body uses chemical energy in food to make ______potential_______ energy.
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Objects fall to Earth at the same rate because the ______________ is the same for all objects.
Acceleration due to gravity
__Thermal Energy__ is all the energy due to random motion of particles that make up an object.
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__Chemical__ is the energy of a compound that changes as its atoms are rearranged.
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___Electrical__ is the energy of moving electrons.
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___sound energy_ is caused by an objects vibrations.
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