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9th CBSE
IMPORTANT
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A car is accelerated on a levelled road and attains a velocity four times of its initial velocity. In this process the potential energy of the car :

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Important Questions on Work, Energy and Power

MEDIUM
9th CBSE
IMPORTANT
Physics>Chapter 5 - Work, Energy and Power>NCERT Exemplar Questions>Q 3
In case of negative work, the angle between the force and displacement is :
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9th CBSE
IMPORTANT
Physics>Chapter 5 - Work, Energy and Power>NCERT Exemplar Questions>Q 4
An iron sphere of mass 10 kg has the same diameter as an aluminium sphere of mass 3.5 kg. Both spheres are simultaneously dropped from a tower. When they are 10 m above the ground, then they have the same:
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9th CBSE
IMPORTANT
Physics>Chapter 5 - Work, Energy and Power>NCERT Exemplar Questions>Q 5
A girl is carrying a school bag of mass 3 kg on her back and moved 200 m on a levelled road. The work done against the gravitational force would be : (g=9.8 m s-2)
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9th CBSE
IMPORTANT
Physics>Chapter 5 - Work, Energy and Power>NCERT Exemplar Questions>Q 6
Which of the following is not a unit of energy?
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9th CBSE
IMPORTANT
Physics>Chapter 5 - Work, Energy and Power>NCERT Exemplar Questions>Q 7
The work done on an object does not depend upon the: 
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9th CBSE
IMPORTANT
Physics>Chapter 5 - Work, Energy and Power>NCERT Exemplar Questions>Q 8
Water stored in a dam possess:
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9th CBSE
IMPORTANT
Physics>Chapter 5 - Work, Energy and Power>NCERT Exemplar Questions>Q 9
A body is falling from a height h. After it has fallen a height h2, it will possess: 
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9th CBSE
IMPORTANT
Physics>Chapter 5 - Work, Energy and Power>EXAM PRACTICE QUESTIONS>Q 1
Is work a vector quantity?