# Work, Power and Energy – Exercise – 1

Work, Power and Energy » Exercise – 1

1. Work is said to be done when a body is moved or stopped through certain distance by the action of : (a) Energy (b) Force (c) Power (d) Momentum

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2. When work is done _______ is transferred to the body or taken out of the body : (a) Energy (b) Force (c) Power (d) Momentum

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3. Work is a product of : (a) Power and time (b) Energy and displacement (c) Force and energy (d) Force and distance

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4. In the vector form, the work done is : (a) f x d (b) d x f (c) ½ f x d (d) f . d

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5. For certain values of F and d, work done is zero when the angle between the force and displacement is : (a) 0o (b) 30o (c) 90o (d) 180o