11th class Physics chapter 4 online mcq test with answers for ICS part 1 Physics chapter 4(Work and Energy)

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Sr.#	Question	Answer
1	A1 kg mass has potential energy of 1 joule relative to the ground when it is at a height of.	A. 0.102 m B. 1 m C. 9.8 m D. 32 m
2	Work done on a body for increasing velocity results in.	A. Change in K.E. B. Change in gravitational P.E. C. Change in electric P.E. D. All
3	Escape velocity depends upon.	A. Mass of the body B. Radius of the body C. Radius of the planet D. Radius of the Earth
4	If the velocity of the body becomes double and mass become half thenints K.E.	A. Becomes double B. Beocmes for time C. In halved D. Becomes eight time
5	Which one of the folloiwng is/are correct.	A. Work is positive if 0< 90^o B. Work is 0 if θ 90^o C. Work is negative if θ 90^o D. All of these
6	Which of the following is non conservative force.	A. Elastic spring force B. Electric force C. Gravitational force D. Tension in string
7	If an agent consumes a power of 1 kW in one hour the work done is.	A. One emega watt hour B. One kile watt hour C. One deci watt hour
8	A body rest may have.	A. Speed B. Energy C. Velocity D. Momentum
9	1 kilowatt is equal =	A. 1000 J /s B. 106 watt C. 0.1 x 10³ Watt D. 6.25 x 10 ^{25 Watt}
10	A man carries a bucket of water of 1 kg for 10m height then work done is.	A. 15 J B. 10 j C. 98 J D. 2.5 J