Forces and Motion Review

You buy an extra large coke at QT and forget to put the lid on. A car pulls out in front of you and your mom yells, “Look out!” You hold your cup still so it won't spill. However, the coke still spills out. Which term explains this situation?

• gravity

• inertia

• density

• friction

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A train was going down the track and a curve was approaching. The conductor went to apply the brake but they did not work. What can account for the train eventually slowing down even though there were no brakes?

• The opposing force of friction stopped the train.

• The train ran out of momentum

• The natural state of the train is not to be in motion.

• The force of gravity slowed the train until it stopped.

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What is the acceleration difference between car 1 and car 2?

• Car 1 starts & stops and Car 2 stays constant

• Car 1 changes velocity and Car 2 increases and decreases its speed

• Car 1 stays constant and Car 2 changes its speed during the trip

• Car 2 stays constant and Car 1 changes its speed during the trip

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Two PE classes are playing tug of war in gym class today. Which factor is most important in determining who will win excluding the number of players on each team?

• The length of the rope

• The temperature outside

• The surface of the floor

• The total mass of the team

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Which baseball would have more acceleration with the same amount of force?

• Both baseballs would have the same acceleration

• The larger ball would have a faster acceleration.

• The larger ball would have a slower acceleration.

• Neither ball would have any acceleration.

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What happened between the 12th and 14th hour of the trip?

• The car turned around to go home but their speed remained constant.

• The car slowed down and sped back up

• The car travelled at a constant velocity

• The car was not moving since there was no change in position

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What must be true of the box's motion?

• It is accelerating to the left

• It is slowing down

• It is moving to the right

• It isn't accelerating.

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With no forces acted upon it, an object at rest will stay at rest and an object in motion will stay in motion

• Newton's 1st Law of Motion

• Newton's 2nd Law of Motion

• Newton's 3rd Law of Motion

The acceleration of an object depends on the net force and acting on it and the mass of the object. F = ma

• Newton's 1st Law of Motion

• Newton's 2nd Law of Motion

• Newton's 3rd Law of Motion

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For every action there is a reaction.

• Newton's 1st Law of Motion

• Newton's 2nd Law of Motion

• Newton's 3rd Law of Motion

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