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PHYSICS

Class 11
Short Questions

Chapter 4

Q 1 A bucket is taken to the bottom of a well, does the bucket possess any P.E. Explain.

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Q 2 When an arrow is shot from its bow, it has K.E. From where does it get the K.E?

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Q 3 Does a hydrogen filled baloon possess any P.E? Explain.

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Q 4 Is K.E a vector quantity?

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Q 5 What happens to K.E of a bullet when it penetrates into the target?

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Q 6 Does the tension in the string of a swinging pendulum do any work? Explain.

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Q 7 A meteor when enters into the earth’s atmosphere burns. What happens to its energy?

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Q 8 What type of energy is stored in the spring of watch?

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Q 9 A man drops a cup from a certain height, which breaks into pieces. What energy changes are involved?

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Q 10 A man rowing boat upstream is at rest with respect to shore, is he doing work?

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Q 11 Why energy savers are used instead of normal bulbs?

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