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

Top Scorers of Physics ICS Part 1 Chapter 4 Online Test

Sr.#	Question	Answer
1	Absolute P.E. of a body of mass"m" at a distance"r" from earth centre is.	A. [-GM/r] B. - Gr/ M C. -Gmr D. GmM /r
2	The dimension of power	A. [ML2 T-3] B. [ML-1T-1] C. [ML2T2] D. [ML-2T-4]
3	1 kilowatt is equal=	A. 1000J/S B. 106 Watt C. 0.1 x 10 ² watt D. 6.25 x 10 ²⁵ J
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	When the force is parallel to the direction of motionof the body the work done is.	A. Minimum B. Maximum C. Infinity D. Zero
6	A field in which the work done in moving a body along a closed path is zero known as.	A. Conservative field B. Nuclear field C. Magnetic field D. Electric field
7	If a body mass 2 kg is raised verticaly through 2 m then the work done will be.	A. 50 J B. -39.2 J C. 35 J D. 40 J
8	The kinetic energy acquired by a distance from rest under eh action of a constant fore is directly proportinal to.	A. m1 B. 1m C. m D. Independent of m
9	The work done in lifting a boyd of mass m from surface of the earth to an infinite distance is.	A. K.E. B. Absolute P.E. C. Elastic P.E. D. Absolue K.E
10	According to work energy principle in linear motin. the work doen one body is equal to.	A. Change in K.E. B. Change in P.E. C. Zero D. Sum of K.E and P.e