ICSE Class 10 Work, Energy and Power — Mock Test

Free online mock test for Work, Energy and Power (ICSE Class 10 Physics) — 81 competency-based questions with instant marking. Try the samples below, then take the full test free.

Sample questions

1. 1.For a block moving on a smooth horizontal table, the gravitational force mg does no work because:
   • A.The gravitational force is zero
   • B.It acts at right angles to the displacement
   • C.The displacement is zero
   • D.Friction cancels the work
2. 2.Which correctly distinguishes an elastic collision from a completely inelastic collision?
   • A.In elastic momentum is not conserved, but in inelastic it is
   • B.In elastic, initial KE = final KE; in completely inelastic the two particles move together after collision
   • C.In both, kinetic energy is fully conserved
   • D.In elastic the bodies stick; in inelastic they separate
3. 3.In a 1D elastic collision where a light mass m1 strikes a much heavier stationary mass m2 (m2 >> m1), after the collision:
   • A.Both masses move forward with equal speeds
   • B.The heavier mass is nearly undisturbed while the lighter mass reverses its velocity
   • C.The lighter mass stops and the heavier moves off fast
   • D.Both masses come to rest
4. 4.A force of 50 N moves a body at a constant velocity of 4 m/s in the direction of the force. The power delivered is:
   • A.200 W
   • B.12.5 W
   • C.54 W
   • D.100 W
5. 5.In an inelastic collision of two bodies, which quantity (or quantities) do NOT change after the collision?
   • A.Total kinetic energy only
   • B.Total linear momentum and total energy of the system
   • C.Total kinetic energy and total linear momentum
   • D.Total energy only, not momentum