| 1. | What is the change potential energy of a stone of mass 5 Kg that falls from a cliff 10 m high? |
| a. | 5 J |
| b. | 50 J |
| c. | 500 J |
| d. | 5000 J |
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Answer: (c).500 J
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| 2. | What is the change in potential energy of a stone of mass 1 Kg thrown up with a Velocity 10 m/s and comes down? |
| a. | 0 |
| b. | 10 J |
| c. | 100 J |
| d. | 500 J |
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Answer: (a).0
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| 3. | A fluid in supplied to a cliff 10 m high, what is the change in specific potential energy of fluid? |
| a. | 10 J/Kg |
| b. | 100 J/Kg |
| c. | 200 J/Kg |
| d. | 500 J/Kg |
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Answer: (b).100 J/Kg
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| 4. | A fluid is supplied to a cliff 20 m high and comes down by 5 m, what is the change in specific potential energy of fluid? |
| a. | 100 J/Kg |
| b. | 150 J/Kg |
| c. | 200 J/Kg |
| d. | 250 J/Kg |
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Answer: (b).150 J/Kg
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| 5. | A ball is thrown up and someone catches it on the cliff, what is the change in potential energy? |
| a. | Positive |
| b. | Negative |
| c. | Zero |
| d. | Cannot say |
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Answer: (a).Positive
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