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General Knowledge :: Physics

  1. When a body falls from an aeroplane, there is increase in its

  2. A.

     Kinetic energy

    B.

     Mass

    C.

     Acceleration

    D.

     Potential energy


  3. Which of the following never occurs singly in nature?

  4. A.

     Inertia

    B.

     Momentum

    C.

     Force

    D.

     Velocity


  5. The moment of inertia of a body does not depend upon

  6. A.

     The mass of the body

    B.

     The mass distribution in the body

    C.

     The angular speed of the body

    D.

     The axis of rotation of the body


  7. Newton's first law of motion gives the concept of

  8. A.

     Energy

    B.

     Work

    C.

     Momentum

    D.

     Inertia


  9. For every action, there is an equal and opposite reaction, is Newton's

  10. A.

     First law

    B.

     Second law

    C.

     Third law

    D.

     Fourth law


  11. Gravitational force is maximum at which place

  12. A.

     Poles

    B.

     Tropic of cancer

    C.

     Tropic of capricorn

    D.

     Equator


  13. A metal ball and a rubber ball, both having the same mass, strike a wall normally with the same velocity. The rubber ball rebounds and the metal ball does not rebound. It can be concluded that

  14. A.

     The rubber ball suffers greater change in momentum

    B.

     The metal ball suffers greater change in momentum

    C.

     Both suffer the same change in momentum

    D.

     The initial momentum of the rubber ball is greater than that of the metal ball


  15. A boy sitting in an open car moving with the constant speed throws a ball straight up into the air. The ball falls

  16. A.

     Behind him

    B.

     In front of him

    C.

     Into his hand

    D.

     By his side


  17. Rate of change of momentum is

  18. A.

     Area

    B.

     Pressure

    C.

     Force

    D.

     Velocity


  19. Which law is also called law of inertia ?

  20. A.

     Newton first law

    B.

     Newton second law

    C.

     Newton third law

    D.

     All of above