NEET Physics Work MCQs Set A

Question:  When the force retards the motion of body, the work done is a) negative b) positive c) Positive or negative depending upon the magnitude of force and displacement d) zero Answer:  negative   Question:  A boy carrying a box…

NEET Physics Work Energy and Power MCQs Set B

Question:  When a rubber-band is stretched by a distance x, it exerts restoring force of magnitude F = ax + bx2 where a and b are constants. The work done in stretching the unstretched rubber-band by L is: a) b) c) d) Answer:   Question…

NEET Physics Work Energy and Power MCQs Set A

Question:  An electron and a proton are moving under the influence of mutual forces. In calculating the change in the kinetic energy of the system during motion, one ignores the magnetic force of one on another. This is, because a) the magnetic forces do not work on…

NEET Physics Power MCQs Set A

Question:  If a force F is applied on a body and it moves with a velocity V, the power will be a) F × v b) F/v c) F/v2 d) F × v2 Answer: F × v   Question: Which of the following must be known in order to determine the power output of an…

NEET Physics Energy Conservation of Energy and Momentum MCQs

Question:  According to work-energy theorem, the work done by the net force on a particle is equal to the change in its a) kinetic energy b) linear momentum c) potential energy d) angular momentum Answer: kinetic energy   Question: A light and a…

NEET Physics Collisions MCQs Set A

Question: Which one of the following statements is true? a) Total kinetic energy is not conserved but momentum is conserved in inelastic collisions b) Total kinetic energy is conserved in elastic collisions but momentum is not conserved in elastic collisions c)…