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1. Which one of the following is not an area of physics?
A) Mechanics
B) Optics
C) Algebra
D) Acoustics
2. Motion necessarily involves
A) a change in velocity.
B) a change in speed.
C) a change in direction.
D) a change in position.
E) all of these
3. The magnitude of a displacement is the magnitude of the distance
traveled.
A) always unequal to
B) less than or equal to
C) always equal to
D) greater than or equal to
E) none of these; the two cannot be compared.
4. Displacement divided by time gives
A) average acceleration.
B) average velocity.
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,C) average speed.
D) average distance.
5. Average speed multiplied by time gives
A) average acceleration.
B) displacement.
C) instantaneous speed.
D) distance.
6. Distance covered per unit of time is called
A) speed.
B) acceleration.
C) velocity.
D) displacement.
7. The straight-line distance and direction between two points are, together, called
A) velocity.
B) displacement.
C) distance.
D) acceleration.
8. The magnitudes of two horizontal displacements are 1 m and 9 m, respectively. Given
that the vectors may be in either the plus or the minus direction, they cannot be added
together to give a total displacement of
A) 10 m.
B) –8 m.
C) 8 m.
D) 9 m.
E) 7 m.
9. A speedometer indicates if the automobile is traveling forward.
A) instantaneous acceleration
B) instantaneous speed
C) instantaneous velocity
D) average speed
E) average acceleration
10. If an object moves with constant velocity,
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, A) its speed is constant.
B) its direction is constant.
C) its average speed is constant.
D) its distance traveled per unit time is constant.
E) all of these
11. If the instantaneous velocity of an object is constant, then so is its
A) velocity.
B) distance.
C) acceleration.
D) displacement.
12. The rate at which an object's velocity changes with time is called its
A) instantaneous velocity.
B) motion.
C) speed.
D) acceleration.
13. An automobile's acceleration may be changed by using the
A) windshield wipers.
B) steering wheel.
C) radio.
D) horn.
14. An automobile's acceleration cannot be changed by using the
A) gas pedal.
B) brake pedal.
C) steering wheel.
D) stick shift.
E) turn signal.
15. An acceleration may result from
A) a change in speed.
B) a change in direction.
C) a change in both speed and direction.
D) all of these
16. For which of the following is the acceleration constant?
A) Nonuniform speed
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