A field in which the work done in a moving a body along closed path is zero is called________________?
A. electric field B. conservative field C. electromagnetic field D. gravitational field
Physics MCQs with Answers
Which of the following types of force can do no work on the particle on which it acts ?
A. frictional force B. gravitational force C. elastic force D. centripetal force
The relation between horse power and watt is_________________?
A. 1 hp = 546 watts B. 1 hp = 746 watts C. 1 hp = 1000 watts D. 1 hp = 946 watts
Slope of work time graph is equal to____________________?
A. displacement B. acceleration C. power D. energy
Work done on the body equals to the _____________________?
A. change in its K.E always B. change in its P.E always C. change in its K.E and change in its P.E D. neither change in K.E and nor change in its P.E
The tides raise the mater in the see roughly in a day___________________?
A. once B. twice C. four time D. eight time
The highest value of escape velocity in solar system is planet____________________?
A. Earth B. Neptune C. Jupiter D. Moon
Gravitational P.E of a body has____________________?
A. no formula B. a formula mgh only C. a formula D. no general formula
When the speed of a moving body is doubled then___________________?
A. its K.E is doubled B. its acceleration is doubled C. its P.E is doubled D. its momentum is doubled
One mega watt hour is equal to_________________?
A. 36 x 106 J B. 36 x 1012 J C. 36 x 109 J D. 36 x 108 J