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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Speed
is the rate of change in ____. a. | velocity | c. | direction | b. | time | d. | distance | | | | |
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2.
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To
describe velocity you need to know ____. a. | speed and direction | c. | direction and acceleration | b. | speed and
time | d. | speed and
acceleration | | | | |
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3.
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Acceleration involves a change in ____. a. | time | c. | speed | b. | direction | d. | both b and c | | | | |
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4.
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Inertia ____. a. | depends on direction | c. | resists a change in motion of an
object | b. | depends on momentum | d. | both a and b | | | | |
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5.
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If
you exert a force on an object in motion you will change its ____. a. | mass | c. | inertia | b. | weight | d. | momentum | | | | |
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6.
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When
object A collides with object B and bounces back, its final momentum is ____ its initial
momentum. a. | greater
than | c. | in the same
direction as | b. | less than | d. | in the opposite direction of | | | | |
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7.
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Momentum is a measure of ____. a. | how hard it is to stop an object | b. | the amount of
matter in an object | c. | the tendency of an object to change its
motion | d. | the amount of force acting on an
object | | |
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8.
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If
gravity did not affect the path of a horizontally thrown ball, the ball would
____. a. | go straight
up | c. | fall straight
down | b. | travel
horizontally | d. | follow a curved
path | | | | |
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9.
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Newton's first law of motion states that an object remains at rest unless a ____ force
acts on it. a. | balanced | c. | gravitational | b. | frictional | d. | net | | | | |
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10.
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Whenever an object is in motion, there is always ____ to oppose the
motion. a. | friction | c. | gravity | b. | inertia | d. | acceleration | | | | |
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11.
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The
relationship among force, mass, and acceleration is stated in ____. a. | the law of
conservation of momentum | c. | Newton's second
law of motion | b. | Newton's first law of motion | d. | Newton's third law of motion | | | | |
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12.
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The
statement "for every action, there is an equal but opposite reaction" is a statement of
____. a. | the law of
conservation of momentum | c. | Newton's second
law | b. | Newton's first
law | d. | Newton's third
law | | | | |
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13.
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Two
or more forces whose effects cancel each other out and do not change the motion of an
object. a. | unbalanced
forces | c. | inertia | b. | balanced forces | d. | net force | | | | |
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14.
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A
point in a object that moves as if all of the object’s mass were concentrated at that
point. a. | center of
mass | c. | point of
weight | b. | point of inertia | d. | center of force | | | | |
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15.
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A
push or pull. a. | inertia | c. | force | b. | mass | d. | friction | | | | |
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