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General Knowledge :: Physics

  1. An object at rest may have

  2. A.

     Momentum

    B.

     Potential energy

    C.

     Velocity

    D.

     Kinetic energy


  3. Which conservation principle is applicable in the case of the motion of a rocket?

  4. A.

     Conservation of mass

    B.

     Conservation of charge

    C.

     Conservation of momentum

    D.

     Conservation of energy


  5. Rocket works on the principle of

  6. A.

     Newton's Third Law

    B.

     Newton's First Law

    C.

     Newton's Second Law

    D.

     Archimedes Principle


  7. A passenger standing in a bus is thrown outward when the bus takes a sudden turn. This happens due to

  8. A.

     Outward pull on him

    B.

     Inertia of motion

    C.

     Change in momentum

    D.

     Change in acceleration


  9. When a running car stops suddenly, the passengers tends to lean forward because of:

  10. A.

     Centrifugal force

    B.

     Inertia of rest

    C.

     Inertia of motion

    D.

     Gravitational force


  11. A man stands in a lift which accelerates upwards. The resultant reaction force on the floor of the lift is

  12. A.

     Greater than the weight of the man

    B.

     Less than the weight of the man

    C.

     Same as the weight of the man

    D.

     Zero


  13. Who defined the law of gravitation ?

  14. A.

     Newton

    B.

     Archimedes

    C.

     Galileo

    D.

     Faraday


  15. It is difficult to fix a nail on a freely suspended wooden frame. Which law supports this statement?

  16. A.

     Law of inertia

    B.

     Newton's second law

    C.

     Newton's third law

    D.

     Pascal's law


  17. In the Earth, the weight of a body is maximum at the

  18. A.

     North Pole

    B.

     South Pole

    C.

     Equator

    D.

     Surface


  19. A person is hurt on kicking a stone due to

  20. A.

     Inertia

    B.

     Velocity

    C.

     Reaction

    D.

     Momentum