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9th CBSE
IMPORTANT
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Power of a moving body is stored in the form of 

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Important Questions on Work, Energy and Power

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9th CBSE
IMPORTANT
Physics>Chapter 5 - Work, Energy and Power>PERIODIC TEST>Q 5

A force F acts on a body as shown in the figure alongside. The displacement of the body is towards the right side shown by an arrow. The work done by the force on the body will be 

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9th CBSE
IMPORTANT
Physics>Chapter 5 - Work, Energy and Power>PERIODIC TEST>Q 6
The work done by a force on a body will be positive if the
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9th CBSE
IMPORTANT
Physics>Chapter 5 - Work, Energy and Power>PERIODIC TEST>Q 7
Kinetic energy of a body becomes double if 
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9th CBSE
IMPORTANT
Physics>Chapter 5 - Work, Energy and Power>PERIODIC TEST>Q (a)
The work done by the force of gravity on a satellite moving round the earth is zero.
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9th CBSE
IMPORTANT
Physics>Chapter 5 - Work, Energy and Power>PERIODIC TEST>Q (b)
One kilowatt-hour is equal to 3.6×106 joules
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9th CBSE
IMPORTANT
Physics>Chapter 5 - Work, Energy and Power>PERIODIC TEST>Q (c)
The compressed/stretched spring possesses gravitational potential energy.
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9th CBSE
IMPORTANT
Physics>Chapter 5 - Work, Energy and Power>PERIODIC TEST>Q (d)
When a body is thrown up, its kinetic energy changes into gravitational potential energy.
EASY
9th CBSE
IMPORTANT
Physics>Chapter 5 - Work, Energy and Power>PERIODIC TEST>Q (e)
The standard unit of power is Watt.