Work And Energy Questions! Physics Trivia Quiz
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- 1.Which of the following sentences uses work in the scientific sense?
- A.
Stan goes to work on the bus.
- B.
Anne did work on the project for 5 hours.
- C.
Joseph found that holding the banner in place was hard work.
- D.
An engine does work on a car when the car is moving.
- 2.A painter lifts a bucket of paint, carries it 5 m horizontally, then sets it back down. Which of the following is true?
- A.
The force of gravity does negative work when the worker lifts the bucket.
- B.
The painter does positive work on the bucket when carrying it horizontally at a constant speed.
- C.
The painter does positive work on the bucket when setting it down.
- D.
No net work is done on the bucket.
- 3.Which equation is used to calculate the work done on an object by a force at an angle, q, to the displacement?
- A.
W = Fd
- B.
W = Fdcos theta
- C.
W = Fdsin theta
- D.
W = mgsin theta
- 4.A joule is equivalent to a
- A.
N.
- B.
N•m.
- C.
N/m.
- D.
Kg•m/s2.
- 5.A parachutist falls at a constant speed for 200 m. Which of the following is true?
- A.
The force of gravity is the only force doing work on the parachutist.
- B.
Air resistance is the only force doing work on the parachutist.
- C.
No forces are doing work on the parachutist.
- D.
No network is done on the parachutist.
Questions: 10 | Attempts: 44856 | Last updated: Jan 4, 2022
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