MEDIUM
11th CBSE
IMPORTANT
Earn 100

What happens to the potential energy which the elevator losses in coming down from the top of a building to a stop at the ground floor?

Important Questions on Work, Energy and Power

EASY
11th CBSE
IMPORTANT
Super Refresher Physics 11>Chapter 6 - Work, Energy and Power>SELF EVALUATION TEST>Q 3
Name two situations where variable force acts.
EASY
11th CBSE
IMPORTANT
Super Refresher Physics 11>Chapter 6 - Work, Energy and Power>SELF EVALUATION TEST>Q 4
Does the work done in raising a load on a platform depend upon how fast it is raised?
EASY
11th CBSE
IMPORTANT
Super Refresher Physics 11>Chapter 6 - Work, Energy and Power>SELF EVALUATION TEST>Q 5
Are kinetic and potential energies interconvertible?
EASY
11th CBSE
IMPORTANT
Super Refresher Physics 11>Chapter 6 - Work, Energy and Power>SELF EVALUATION TEST>Q 6
From where the kinetic energy of the falling rain drop come?
EASY
11th CBSE
IMPORTANT
Super Refresher Physics 11>Chapter 6 - Work, Energy and Power>SELF EVALUATION TEST>Q 7
What are the factors on which the work done depends?
EASY
11th CBSE
IMPORTANT
Super Refresher Physics 11>Chapter 6 - Work, Energy and Power>SELF EVALUATION TEST>Q 8
Under what condition, the work done by a force is maximum and minimum?
MEDIUM
11th CBSE
IMPORTANT
Super Refresher Physics 11>Chapter 6 - Work, Energy and Power>SELF EVALUATION TEST>Q 9
A man is rowing a boat up a stream with respect to the shore. Is he doing a work? Explain.
EASY
11th CBSE
IMPORTANT
Super Refresher Physics 11>Chapter 6 - Work, Energy and Power>SELF EVALUATION TEST>Q 10
A man continues to push a rock for some time but fails to move it. What is the work done? Explain.