Download Laws of Motion Test Name

Laws of Motion Review
Name_________________________________
Date_____________ Period_______________
Multiple Choice
Identify the choice that best completes the statement or answers the question.
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1. If a baseball and a cannonball are dropped from the same height at the same time, which ball will hit the
ground first?
a. the cannonball
c. The balls land at the same time.
b. the baseball
d. the ball with the larger volume
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2. If an action force is a cue ball (white) hitting a billiard ball (various colors) when playing pool, then the
reaction force is
a. exerted on the table.
b. exerted on all the other billiard balls.
c. not present.
d. exerted by the billiard ball on the cue ball.
3. A crumpled piece of paper hits the ground before a flat sheet of paper because
a. the acceleration of gravity is greater on the crumpled paper.
b. there is more air resistance against the flat paper.
c. the crumpled paper is more massive.
d. the crumpled paper is less massive.
4. According to Newton’s first law of motion, a moving object that is not acted on by an unbalanced force will
a. remain in motion.
c. change its momentum.
b. eventually come to a stop.
d. accelerate.
5. An ice skater at rest pushes against a sled at rest, causing both the skater and sled to move away from each
other with different accelerations. This is an example best described by
a. Newton’s first law of motion for objects at rest.
b. Newton’s first law of motion for objects in motion.
c. Newton’s second law of motion.
d. Newton’s third law of motion.
6. A sled sliding on a flat, icy surface with a constant velocity is best described by
a. Newton’s first law of motion for objects at rest.
b. Newton’s first law of motion for objects in motion.
c. Newton’s second law of motion.
d. Newton’s third law of motion.
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7. Which of the following explains the difference between speed and velocity?
a. One has motion, and the other does not.
b. One has direction, and the other does not.
c. One involves time, and the other does not.
d. One involves acceleration, and the other does not.
8. The gravitational pull is greater between two objects that
a. have greater masses.
c. are farther apart.
b. have rougher surfaces.
d. are moving at greater speed
9. Dividing the total distance traveled by the total time is how to calculate
a. average speed.
c. average acceleration.
b. average velocity.
d. average motion.
____ 10. A hiker’s velocity begins at 1.8 m/s uphill and changes to 1.5 m/s uphill. How do you know that the hiker has
a negative acceleration?
a. His direction changed.
c. His speed increased.
b. His direction was unchanged.
d. His speed decreased.
_____ 11. How does Newton’s third law explain how a rocket takes off?
a. The rocket’s acceleration is positive, while the gasses acceleration is negative but the direction is the same.
The motion is therefore both “equal and opposite”
b. The rocket is at rest until ignition.
c. The hot gasses move in one direction, while the rocket moves in the opposite direction but with equal
force.
d. The hot gasses cause global warming.
Matching
Match each item with the correct statement.
a. Newton’s first law of motion
c. Newton’s third law of motion
b. Newton’s second law of motion
____ 12. Acceleration is caused by a force acting on a mass.
____ 13. For a force on an object there is an equal and opposite force.
____ 14. Without any force to change it, an object at rest stays at rest and an object in motion stays in motion.
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16. During which 5-minute interval did Kyle achieve the greatest average speed?
a. 0-5 minutes
c. 10-15 minutes
b. 5-10 minutes
c. 15-20 minutes
17. Look at the Figure A above. Why does the block not move?
a. no force applied
b. frictional force
c. surface friction
d. kinetic friction
18. If a force of 26 N is exerted on two balls, one with a mass of 0.52 kg and the other with a mass of 0.78 kg,
which ball will have the greater acceleration? (F=ma)
a. The one with a mass of .78 kg will have the greatest acceleration.
b. The one with a mass of .52 kg will have the greatest acceleration.
c. They will both accelerate at the same rate.
d. Neither will accelerate.
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