Force, Mass, and Motion Review

During a race, four competitors of the same weight rode identical bicycles for 10 minutes. After eight minutes, which bicycle was moving with the greatest velocity?

• A

• B

• C

• D

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The diagram represents the movement of a train from left to right, with velocity v. Which statement is true?

• The train is speeding up.

• The train is slowing down.

• The train is moving at a constant speed.

• The train is speeding up in certain intervals while decreasing in others.

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John and Caroline go out for a walk one day. This graph represents their distance from home.

Which statement accurately describes their walk?

• They walked quickly, then they were still, then they walked slowly.

• They walked forward fast, then they were still, then they walked backward slow.

• They walked in one direction, then they were still, then they walked in the opposite direction.

• They walked faster and faster until they walked at a constant rate, then they walked slower and slower.

Sally and Maria were running around the track during PE. They were not happy and decided to stop and rest once they got to the bleachers. Based on the data in the graph, how long did the girls rest in the bleachers?

• 4 minutes

• 10 minutes

• 14 minutes

• 24 minutes

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Two people must have the same speed and velocity if...

• they are walking toward each other at 2 m/s.

• they are walking away from each other at 2 m/s.

• they are jogging side by side at 5 m/s.

• they are jogging to two different destinations.

The graph shows the speed of a car during a trip along the highway. What can you say, in general, about the speed of the car?

• It is constant during the trip

• It is moving at a slow rate of speed.

• It is increasing throughout the trip.

• It varies at different times during the trip.

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Two platoons line up for a tug of war. If both platoons have the same number of participants on a team, what other factor is critical to either platoon's win?

• age of men

• height of men

• total mass of the team

• condition of the ground

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While studying balanced and unbalanced forces, Jose and Gina test what they have learned by Jose applying 10 Newtons of forces to one side of a box and Gina applying 8 Newtons of force to the other side of the box.

• The box does not move.

• The box moves toward Gina.

• The box moves toward Jose.

• The force crumples the box.

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The image above shows two opposite forces acting on a rolling cart, what can we say is true about the affect of the forces on the cart?

• It cannot be determined without knowing which man is stronger.

• It cannot be determined because one man is taller than the other.

• The forces are unbalanced, and net force on the cart moves it to the left.

• The forces are unbalanced, and net force on the cart moves it to the right.

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Jawanda was playing with her new Superman bobble head. She noticed that after she pushed Superman's head it would vibrate, but after a while it would bobble less and then stop. Which of Newton's laws best explains why this happened?

• The first law - The head moves until a force stops it.

• The third law - The head is reacting to a action force.

• The first law - The head is in motion and it will remain in motion.

• The second law - The head was not pushed hard enough to keep the head moving.

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