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 moving billiard ball collides with an identical stationary one. Which
statement correctly describes what happens to the first ball after collision?
A) | It continues with the same velocity as before | B) | It has one-half of
its initial velocity | C) | It comes to rest | D) | It moves in the
opposite direction |
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2.
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The unit of force in the SI system is
A) | kg-m2/s | B) | kg-m/s2 | C) | kg-m2/s2 | D) | kg-m/s |
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3.
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A 100 mg pill has a mass of
A) | 0.001 g | B) | 0.01 g | C) | 0.1
g | D) | 1 g |
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4.
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Which of the following quantities is NOT a vector?
A) | displacement | B) | acceleration | C) | speed | D) | force |
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5.
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An object moving with a velocity of 20 m/s undergoes an acceleration of –4
m/s2. After 2 seconds, the velocity of the object is
A) | 16 m/s | B) | 12 m/s | C) | 28
m/s | D) | –8 m/s |
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6.
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Which of the following statements best describes science?
A) | Science discovers and corrects its own mistakes. | B) | Science is a
glorious entertainment. | C) | Science is concerned with facts which are
absolutely true. | D) | Science is concerned with collecting and classifying as many facts as
possible. |
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7.
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The radius of the earth is 6.38 x 103 km. This value can also
be expressed as
A) | 6.38 x 10 –5 m | B) | 6.38 x 106 m | C) | 6.38 x
105 m | D) | 638 km |
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8.
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A net force of 20 N acts on an object and causes it to experience an
acceleration of 10 m/s2. The object’s mass is
A) | 10 kg | B) | 100 kg | C) | 0.5
kg | D) | 2 kg |
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9.
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The Law of Universal Gravitation states that the force between two bodies
is
A) | inversely proportional to the square of the distance between the
bodies. | B) | directly proportional to the distance between the bodies. | C) | inversely
proportional to the distance between the bodies. | D) | inversely proportional to their
masses. |
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10.
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If a body is moving at constant velocity, it must have
A) | constant acceleration | B) | a constant force acting upon
it | C) | constant speed | D) | all of the
above |
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11.
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Normal body temperture is 98.6 °F. What is this temperature in
degrees Celsius?
A) | 22.8 °C | B) | 54.8 °C | C) | 37.0
°C | D) | 66.6 °C |
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12.
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An object that has twice as much mass as another also has twice as
much
A) | acceleration | B) | area | C) | weight | D) | volume |
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13.
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The correct answer for the operation below is: A) | 2.0 | B) | 2.0 x 10
–16 | C) | 2.0 x 100 | D) | 2.0 x
1016 |
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14.
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Acceleration refers to
A) | how much the velocity changes | B) | how much the speed changes | C) | how fast the
velocity changes | D) | how fast an object is moving |
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15.
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An object is dropped from rest. In one second of free fall it would have
traveled about
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