Quiz  /  Conservation Of Energy And Momentum MCQ

  • 1. 
    Work done in raising a box depends on

  • How fast it is raised
  • The strength of the man
  • The height by which it is raised
  • None of the above

  • 2. 
    A light and a heavy body have equal momenta. Which one has greater kinetic energy?

  • The light body
  • The heavy body
  • The kinetic energy is equal
  • Data is incomplete

  • 3. 
    A body at rest may have

  • Energy
  • Momentum
  • Speed
  • Velocity

  • 4. 
    If the momentum of a body is increased n times, its kinetic energy increase

  • n times
  • 2n times
  • n
  • times
  • n
  • times

  • 5. 
    When work is done on a body by an external force, its

  • kinetic energy increases
  • potential energy increases
  • Both kinetic energy and potential energy increases
  • Sum of the kinetic energy and potential energy remains constant

  • 6. 
    If the K.E of a body is increased by 300% its momentum will increase by

  • 100%
  • 150%
  • 200%
  • 175%

  • 7. 
    A light and a heavy body have equal kinetic energy. Which one has a greater momentum?

  • The light body
  • The heavy body
  • Both have equal momentum
  • It is not possible to say anything without additional information

  • 8. 
    If the linear momentum is increased by 50% the kinetic energy will increase by

  • 50%
  • 100%
  • 125%
  • 25%

  • 9. 
    If the stone is thrown up vertically and return to the ground, its potential energy is maximum

  • During the upward journey
  • At the maximum height
  • During the return journey
  • At the bottom

  • 10. 
    The energy stored in wound watch spring is

  • K.E
  • P.E
  • Heat Energy
  • Chemical Energy
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