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Question
What is the work done by the moon when it revolves around the earth?
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Solution
Work done = Force × Displacement
RELATED QUESTIONS
Define the term energy.
What is the condition for a force to do work on a body?
Choose one or more correct alternatives.
For work to be performed, energy must be ______.
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- concentrated
- transformed from one type to another
- destroyed
A block of mass 20 kg is pulled up a slope (fig.12) with a constant speed by applying a force of 500 N parallel to the slope. A and B are initial and final positions of the block.
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(b) Calculate the potential energy gained by the block.

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