Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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A force of 50 N
causes an object to accelerate at 10 m/s2. What is the mass of the
object?
a. | 5.0 kg | b. | 0.20 kg | c. | 60 kg | d. | 500 kg | | |
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2.
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Which object
possesses the most inertia?
a. | ham sandwich | b. | penny | c. | elephant
| d. | bag of chips | e. | mouse | | |
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3.
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Which combination
of graphs best describes free-fall motion? (Neglect air resistance.)
a. | A and C
| b. | B and D
| c. | B and C
| d. | A and D
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4.
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An object has a
constant acceleration of 2.0 m/s2. The time required for the object to accelerate
from 8.0 m/s to 28 m/s is a. | 20 s | b. | 16 s | c. | 10 s | d. | 4.0 s | | |
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5.
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Rockets are able
to accelerate in space.
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6.
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A 4N force and a
10N force act in the same direction on an object. What is the magnitude of the net force of the
object?
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7.
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Which graph best
represents the relationship between mass and acceleration due to gravity for objects near the surface
of the earth? (Neglect air resistance)
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8.
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Planets move
faster when they are closer to the sun and slower when farther
away. a. | False
| b. | Depends on the mass of the
planet. | c. | True
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9.
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A skier starting
from rest straight down a slope 50 meters long in 5.0 seconds. What is the magnitude of the
acceleration of the skier? a. | 9.8 m/s2 | b. | 5.0 m/s2 | c. | 20 m/s2 | d. | 4.0 m/s2 | | |
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Base your answers to the next two questions on the
position-time graph below.
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10.
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Which best
describes the motion of the object?
a. | constant acceleration | b. | at rest | c. | constant speed
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11.
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How far would a
car have traveled at a constant velocity of 60m/s if it traveled for 50s?
a. | 1.7 m
| b. | 60 m
| c. | 300 m
| d. | 3,000
m | | |
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12.
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If an astronaut in
space threw an apple core, the amount of force needed to keep it going would
be a. | equal to its
weight. | b. | the same amount of force with
which it was thrown. | c. | one half the force with which it was
thrown. | d. | equal to its
mass. | e. | 0
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True/False
Indicate whether the sentence or statement is true
or false.
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13.
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The force that is
left over after all the forces acting on an object are cancelled and/or combined, is called the net
force.
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14.
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The amount of
matter in an object is called weight.
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15.
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Friction refers to
the force between two surfaces that are sliding past one another.
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