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11th West Bengal Board
IMPORTANT
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Can a body have momentum without energy and energy without momentum?

Important Questions on Work, Energy and Power

EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 9 - Work, Energy and Power>EXERCISE>Q 7
A man carrying a bucket of water, stands in a lift which is ascending with uniform velocity. Explain whether the man is doing any work on the bucket.
EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 9 - Work, Energy and Power>EXERCISE>Q 7
A man carrying a bucket of water, stands in a lift which is ascending with uniform velocity. Explain whether the energy of the bucket remains unchanged.
EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 9 - Work, Energy and Power>EXERCISE>Q 8
Answer the following question, you have a 10 g mass on your right hand and a 5 g mass on your left hand. Which one has greater potential energy?
EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 9 - Work, Energy and Power>EXERCISE>Q 8
Answer the following question, two bullets of same speed but of different masses viz., 10 g and 40 g respectively strike a mud wall. Which one will penetrate the wall more?
EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 9 - Work, Energy and Power>EXERCISE>Q 8
Answer the following question, What should be the angle between the force and displacement in order to get maximum work?
EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 9 - Work, Energy and Power>EXERCISE>Q 8
Answer the following question. Under what conditions work done by a force will be positive or negative?
EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 9 - Work, Energy and Power>EXERCISE>Q 8
Answer the following question. Give an example of a force acting on moving body yet doing no work.
EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 9 - Work, Energy and Power>EXERCISE>Q 8
Answer the following question. The earth is moving round the sun in a circular path due to the force exerted by the sun on the earth. Is the sun doing any work due to this motion. Explain.