Practice Test Answers

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1
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A football player has a mass of 65 kilograms and is moving with a velocity of 5 meters per second What is the player’s momentum?

A
305 kilograms times m over s
B
13 kilograms times m over s
C
70 kilograms times m over s
D
325 kilograms times m over s
3

Which best describes a force?

A
a vector with direction only
B
a vector with magnitude and direction
C
a vector with strength only
D
a vector with speed and strength
5

A tugboat is pulling a barge into a harbor. The barge is exerting a force of 3000 N against the tugboat. Which force would most likely allow the tugboat to move the barge into the harbor?

A
3000 N in the opposite direction of the barge
B
3000 N in the same direction of the barge
C
4500 N in the opposite direction of the barge
D
4500 N in the same direction of the barge
7

Two objects collide and bounce apart. Assuming no outside forces act on the system, which best describes the total momentum after the collision?

A
It is always the same as it was before the collision.
B
It is often greater than it was before the collision.
C
It is always greater than it was before the collision.
D
It is often the same as it was before the collision.
11

Which lists them from least to most acceleration?

A
Max right arrow Xander right arrow Finley
B
Max right arrow Finley right arrow Xander
C
Xander right arrow Finley right arrow Max
D
Finley right arrow Xander right arrow Max
12

What did the diver most likely use as a reference point to describe the position of the squid?

A
the position of the seaweed
B
the ocean surface
C
the position of the clownfish
D
the ocean floor

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