Exam 1 Target 4 Preap Numbers 11-15
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11. The speed of a car will increase if the car’s
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A. initial velocity is positive and its acceleration is zero.
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B. initial velocity is positive and its acceleration is positive.
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C. initial velocity is positive and its acceleration is negative.
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D. initial velocity is negative and its acceleration is positive.
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.
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- 2.
15. Acceleration is defined as
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A. rate of displacement.
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B. the rate of change of displacement.
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C. the change in velocity.
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D. the rate of change of velocity.
Correct Answer
A. D. the rate of change of velocity. -
- 3.
12. For a scooter with a negative acceleration, which of the following statements is always true?
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A. The scooter is losing speed.
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B. The final velocity of the scooter will be negative.
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C. The initial velocity of the scooter will be greater than its final velocity.
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D. The scooter will have a negative displacement.
Correct Answer
A. C. The initial velocity of the scooter will be greater than its final velocity. -
- 4.
13. Four people are riding the bicycles along different paths. Bicyclist 1 is traveling east at a constant speed of 10 mph. Bicyclist 2 is traveling north at a constant speed of 5 mph. Bicyclist 3 is traveling along a circular path at a constant speed of 7 mph. Bicyclist 4 is traveling along a radius of Bicyclist 3's circular path at a constant speed of 20 mph. Which of the bicyclists is accelerating along his/her path?
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A. Bicyclist 1
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B. Bicyclist 2
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C. Bicyclist 3
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D. Bicyclist 4
Correct Answer
A. C. Bicyclist 3 -
- 5.
14. While a car travels around a circular track at constant speed, its
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A. acceleration is zero
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B. velocity is zero
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C. both a and b
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D. none of the above
Correct Answer
A. C. both a and b -
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Mar 21, 2022Quiz Edited by
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Aug 21, 2015Quiz Created by
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