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
2. When work is done _______ is transferred to the body or taken out of the body :
(a) Energy
(b) Force
(c) Power
(d) Momentum
3. Work is a product of :
(a) Power and time
(b) Energy and displacement
(c) Force and energy
(d) Force and distance
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
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
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