Exam 4 Physics Numbers 1-5 2016-2017
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- 1.
1.Which of the following sentences uses work in the scientific sense?
- A.
A. Stan goes to work on the bus.
- B.
B. Anne did work on the project for 5 hours.
- C.
C. Joseph found that holding the banner in place was hard work.
- D.
D. An engine does work on a car when the car is moving.
Correct Answer
D. D. An engine does work on a car when the car is moving. -
- 2.
2. Work is done on an object
- A.
A. whenever a force acts on the object.
- B.
B. whenever a force is perpendicular to the displacement of the object.
- C.
C. whenever a force causes a displacement of the object.
- D.
D. whenever a net force acts on the object.
Correct Answer
C. C. whenever a force causes a displacement of the object. -
- 3.
3. In which of the following cases is no work done?
- A.
A. A weightlifter lifts a barbell.
- B.
B. A weightlifter holds a barbell overhead.
- C.
C. A weightlifter slowly lowers a barbell.
- D.
D. A weightlifter drops a barbell and the barbell falls to the ground.
Correct Answer
B. B. A weightlifter holds a barbell overhead. -
- 4.
4. In which of the following sentences is work used in the scientific sense of the word?
- A.
A. Holding a heavy box requires a lot of work.
- B.
B. A scientist works on an experiment in the laboratory.
- C.
C. Tony and Darren pushed the car to the side of the road.
- D.
D. John learned that shoveling snow is hard work.
Correct Answer
C. C. Tony and Darren pushed the car to the side of the road. -
- 5.
5. In which of the following sentences is work used in the everyday sense of the word?
- A.
A. Lifting a heavy bucket involves doing work on the bucket.
- B.
B. The force of friction usually does negative work.
- C.
C. Sam and Rachel worked hard pushing the car.
- D.
D. Work is a physical quantity.
Correct Answer
C. C. Sam and Rachel worked hard pushing the car. -
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Jan 30, 2017Quiz Edited by
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Dec 09, 2015Quiz Created by
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