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  1. The wall of a dam is broader at the base

    2. A.

     Because streamlining is required
    B.

     To withstand pressure that increases with depth
    C.

     To withstand pressure that increases in a horizontal plane
    D.

     To withstand pressure that is increased with atmospheric pressure

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  2. It is easy to burst a gas-filled balloon with a needle than with a nail. It is because

    3. A.

     Nail is more longer than needle.
    B.

     Nail exerts more pressure than needle on the balloon.
    C.

     Needle exerts more pressure than nail on the balloon.
    D.

     Gas is reactive with the needle.

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  3. The force exerted on an object is 200 N and its mass is 100 kg. Find the acceleration of the object.

    4. A.

     2 m/s
    B.

     2 m
    C.

     2 m/sq.s
    D.

     2 s

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  4. The spokes used in the wheel of a bicycle increase its

    5. A.

     Moment of inertia
    B.

     Velocity
    C.

     Acceleration
    D.

     Momentum

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  5. It is difficult to cook rice

    6. A.

     At the top of a mountain
    B.

     At the sea level
    C.

     Under a mine
    D.

     Same anywhere

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  6. Energy per unit volume is dimensionally equal to

    7. A.

     Pressure
    B.

     Force
    C.

     Density
    D.

     Work

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  7. To open a door easily, the handle should be fixed

    8. A.

     Near the hinges
    B.

     Away from mid-point opposite to hinges
    C.

     In the middle
    D.

     None of these

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  8. Water boils at a lower temperature on the hills because

    9. A.

     It is cold on the hills
    B.

     There is less carbon dioxide on the hills
    C.

     There is a decrease in air pressure on the hills
    D.

     There is less oxygen

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  9. The force exerted by a magnet is an example of ________

    10. A.

     Non-contact force
    B.

     Muscular force
    C.

     Contact force
    D.

     Electrostatic force

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  10. A man standing close to the platform at a railway station experiences a pulling force towards a fast moving train because of ________ .

    11. A.

     Gravitational force between train and man
    B.

     Illusion of the man
    C.

     The centripetal force
    D.

     Pressure difference due to fast moving air in between

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