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General Knowledge :: Physics

  1. When a bullet is fired from a gun

  2. A.

     The gun moves forward

    B.

     The gun jumps up

    C.

     The gun does not move

    D.

     The gun recoils with the same momentum as the bullet


  3. The inability of a body to change its state of rest or uniform motion along a straight line is called its

  4. A.

     Momentum

    B.

     Velocity

    C.

     Acceleration

    D.

     Inertia


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

  6. A.

     Axis of rotation

    B.

     Angular velocity

    C.

     Form of mass

    D.

     Distribution of mass


  7. An athlete runs before long jump to get advantage on

  8. A.

     Inertia of motion

    B.

     Frictional force

    C.

     Moment of a force

    D.

     Principle of moments


  9. What is the gravity of moon as compared to the Earth

  10. A.

     1/4 th of Earth

    B.

     1/5 th of Earth

    C.

     1/6 th of Earth

    D.

     1/8 th of Earth


  11. When a card placed over a tumbler is flicked with the finger, the coin placed over it falls in the tumbler.

  12. A.

     Law of conservation of energy

    B.

     Newton's third law of motion

    C.

     Law of Inertia

    D.

     Law of conservation of momentum


  13. According to the Second Law of Motion, for a given force, acceleration is inversely proportional to the ________ of an object.

  14. A.

     Density

    B.

     Volume

    C.

     Force

    D.

     Mass


  15. Why does a cannon recoil after firing ?

  16. A.

     Conservation of energy

    B.

     Backward thrust of gases produced

    C.

     Newton's third law of motion

    D.

     Newton's first law of motion


  17. When a constant force acts on an object with a mass of 8 kg for a duration of 3 s. it increases the object's velocity from 4 m/s to 6 m/s . What is the magnitude of the applied force?

  18. A.

     5.33 N

    B.

     4.33 N

    C.

     6.33 N

    D.

     3.33 N


  19. A body of mass 5 kg accelerates from 12 m/s to 20 m/s in 4 seconds due to the application of a force on it. Calculate the magnitude of this force (in N).

  20. A.

     40

    B.

     10

    C.

     20

    D.

     80