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9th CBSE
IMPORTANT
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Is work a scalar or a vector quantity?

Important Questions on Work and Energy

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9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 4 - Work and Energy>Assignment>Q 6
What is the work done against "gravity" when a body is moved along a horizontal surface?
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9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 4 - Work and Energy>Assignment>Q 7
How much work is done by a man who tries to push a wall of a house but fails to do so?
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9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 4 - Work and Energy>Assignment>Q 8
In which of the following case the work done by a force is maximum? When the angle between the direction of force and direction of motion is 0ο or 45ο or 90ο. 
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9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 4 - Work and Energy>Assignment>Q 9
What is the work done on a body moving in a circular path?
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9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 4 - Work and Energy>Assignment>Q 10
What would be the amount of work done on an object, if the displacement is zero?
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9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 4 - Work and Energy>Assignment>Q 11
The formula for work done W on a body when the body makes an angle A to the direction of force F is W=Fs _____,    cos A / sin A / tan A
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9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 4 - Work and Energy>Assignment>Q 12
What is the angle (in degrees) between the direction of force and the direction of motion of a body so that work done is zero?
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9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 4 - Work and Energy>Assignment>Q 13
A man is rowing a boat upstream, but his boat remains at rest with respect to the shore. Is he doing any work?