E1t6 Preap Physics Numbers 11-15 2016
5 Questions
| Total Attempts: 141
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Questions and Answers
- 1.11. The speed of a car will increase if the car’s
- A.
A. initial velocity is positive and its acceleration is zero.
- B.
B. initial velocity is positive and its acceleration is positive.
- C.
C. initial velocity is positive and its acceleration is negative.
- D.
D. initial velocity is negative and its acceleration is positive.
- 2.12. For a scooter with a negative acceleration, which of the following statements is always true?
- A.
A. The scooter is losing speed.
- B.
B. The final velocity of the scooter will be negative.
- C.
C. The initial velocity of the scooter will be greater than its final velocity.
- D.
D. The scooter will have a negative displacement.
- 3.13. 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?
- A.
A. Bicyclist 1
- B.
B. Bicyclist 2
- C.
C. Bicyclist 3
- D.
D. Bicyclist 4
- 4.14. While a car travels around a circular track at constant speed, its
- A.
A. acceleration is zero
- B.
B. velocity is zero
- C.
C. both a and b
- D.
D. none of the above
- 5.15. Acceleration is defined as
- A.
A. rate of displacement.
- B.
B. the rate of change of displacement.
- C.
C. the change in velocity.
- D.
D. the rate of change of velocity.
Questions: 5 | Attempts: 149 | Last updated: Nov 21, 2016
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Sample QuestionThe net force acting on an object is zero. Based on this information, which statement about the object is FALSE?
Questions: 5 | Attempts: 142 | Last updated: Feb 10, 2017
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Sample Question11. In what kind of collision is kinetic energy always conserved?
Questions: 9 | Attempts: 69 | Last updated: Mar 2, 2017
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Sample QuestionAn object travels 5 m in the 1st second of travel, 5 additional m during the 2ndsecond of travel, and 5 more m during the 3rdsecond of travel. Its acceleration is, therefore,
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