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FORCES Review
DefinitionOf
Terms
BalancedAnd
UnbalancedForces
100
GravityAnd
MotionGravity
FrictionMiscell-aneous
500
400
300
200
100 100 100 100
200 200 200 200
300 300 300300
400 400 400 400
500 500 500500 500
400
300
200
100
Final Jeopardy
A push or pull.
BackANSWER: What is force?
The SI unit used to measure force.
BackANSWER: What is the Newton?
Type of friction that occurs when two objectsare at rest.
Back
ANSWER: What is static friction?
The combination of all forces acting on an object.
Back
ANSWER: What is net force?
Balanced forces result in this.
BackANSWER: What is equilibrium?
Since force is a vector quantity, it is described by these two properties.
Back
ANSWER: What is strength and direction?
Balanced and Unbalanced Forces
100pts
Equal forces acting on one object in opposite directions are called this.
Back
ANSWER: What is balanced forces?
Balanced and Unbalanced Forces
200pts
Back
Unbalanced forces acting on an object result in a net force and cause a change
in this.
ANSWER: What is motion?
Balanced and Unbalanced Forces
300pts
The net force of the picture below.
Back
ANSWER: What is ?
Balanced and Unbalanced Forces
400pts
5
In order for the box to be in equilibrium A must be equal to this.
BackANSWER: What is A = 360 N ?
Balanced and Unbalanced Forces
500pts
240 NA
This type of friction occurs when two solid surfaces slide
over each other.
Back
ANSWER: What is sliding friction?
Friction
100pts
This type of friction occurs when you are riding a bike.
Back
ANSWER: What is rolling friction?
Friction
200pts
The type of friction depicted by the picture below.
Back
ANSWER: What is fluid friction?
Friction
300pts
Back
Friction depends on these two factors.
ANSWER: What is the 1) types of surfacesAnd 2) force between surfaces?
Friction
400pts
Compared to freight trains, mag-lev trains eliminate this type of friction.
Back
ANSWER: What is rolling friction?
Friction
500pts
The force that attracts a body towardsthe center of the Earth.
Back
ANSWER: What is gravity?
Gravity
100
Isaac Newton theorized the Universal Law of Gravitation which stated that if distanceincreases, the force of gravity does this.
Back
ANSWER: What is decreases?
Gravity
200
An object’s _________ depends on the strength Of gravity wherever the object is.
Back
ANSWER: What is the object’s weight?
Gravity
300
This is the robot’s weight: A robot’s mass is 67 kg on Jupiter. Jupiter’s gravity is 23 N/kg
Back
ANSWER: What is 1541 N?
Gravity
400
Back
ANSWER: What is mass is constant, weight isnot?
This is how mass differs from weight.
Gravity
500
Friction does this if you jump in the boat.
Back
ANSWER: What is increases?
Miscellaneous
100
This was the score of the Chicago Bull’s game last night.
Back
ANSWER: What is Bulls-91 Heat-94?
Miscellaneous
200
This is the name of Rapunzel’s leading
man.
Back
ANSWER: Who is Flynn Rider?
Miscellaneous
300
Back
This is the reason a helicopter with longer wings had a longer flight time.
ANSWER: What is longer wings had a larger surface area so air resistance was increased?
Miscellaneous
400
David pulls hard on the rope. It slips through Josh’s hands, Isa lets go, Rachel and Stephanie
hold on tight, and Joan doesn’t have time for David’smonkey business, so she leaves. Which person
experienced the MOST sliding friction?
Back
ANSWER: Who is Josh?
Miscellaneous
500
Back
ANSWER: What is 9.8 m/s2?
Gravity and Motion
100
This is the acceleration due to gravity.
Back
ANSWER: What is free fall?
Gravity and Motion
200
This occurs when the only force acting onan object is gravity.
Back
ANSWER: What is air resistance?
Gravity and Motion
300
As surface area increases, this also increases.
Back
ANSWER: What is terminal velocity?
Gravity and Motion
400
This is the maximum speed at which an object falls where the force of gravity equals the force of air resistance.
This is what Galileo proved.
Back
ANSWER: What is objects of different masses fall at the same rate?
Gravity and Motion
500
Back
ANSWER: What is 4.46 m/s?
A punter kicked a football straight up at -36.7 meters/second. What was the ball’s velocity after 4.2 seconds?
A person weighs 70.7 kg on Earth. What is their weight on Earth? What is their weight on Saturn (g= 10.4 N/kg)?
ANSWER: What is 692.86 and 735.28N?
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