ECAT Pre Computer Science Chapter 4 MCQ Test With Answer

Top Scorers Of ECAT Physics Chapter 4 Work and Energy MCQ`s Test

Sr.#	Question	Answer
1	Work done is maximum when angle between force and displacement is	A. 0° B. 90° C. 180° D. None of these
2	When two protons are brought are brought closer potential energy of both of them:	A. Increases B. Decreases C. Remains same D. None of these
3	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. Electric force D. Centripetal force
4	A laborer carrying a load on his head moves from the rest on a horizontal road to another point where he comes to rest. He has done:	A. Minimum Work B. Maximum Work C. Zero Work D. Negative Work
5	A boy pulls a toy car through a distance of 5 m by applying a force of 0.5 N, Which makes an angle of 60° with the horizontal. The work done by the boy is:	A. 1.25 J B. 12.5 J C. 125 J D. None of these
6	Work is a	A. Scalar quantity B. Vector quantity C. Base quantity D. None of these
7	If force and displacement are in opposite direction, the work done is taken as	A. Positive work B. Negative work C. Zero work D. Infinite work
8	The unit of work in CGS system is	A. Joule B. Erg C. Dyne D. Watt
9	Most of the geysers occur in:	A. Volcanic regions B. Magnetic regions C. Northern region D. None of these
10	Work has the dimension as that of:	A. Torque B. Angular momentum C. Linear momentum D. Power