Question # 1

Things with _____________ area are more stable>

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Larger

Smaller

All

None of these

_____________ is an other unit of power.

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J

W

hp

W/J

Running water possess energy:

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Kinetic

Potential

Elastic Potential energy

Gravitational potential energy

The orbital speed of a low orbit satellite is:

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Zeri

8 ms^-1

800 ms^-1

8000 ms^-1

Moon complete its one revolution around the earth is ___________ DAYS:

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29

27.3

30

21

In which hot liquid can remains hot:

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Glass

Lead

Thermos

Hot pot

The kinetic energy of a body of mass 2 kg is 25J, its speed is

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5 ms-1

12.5 ms-1

25 ms-1

50 ms-1

A boy jumps out of a moving bus. There is danger for him to fall

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Towards the moving bus

In the direction of motion

away from the bus

Opposite to the direction of motion

The formula for centripetal force is:

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Fc = mv2

Fc = mr2

Fc = mv2 / r

Fc = m/v

Rate of doing work is called:

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Energy

Torque

Power

Moment

Solar energy is a type of.

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Renewable

Non-renewable

Natural

None

________ is used to measure the force or weight of a body :

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Physical balance

Spring balance

A and B both

None

What is unit of momentum?

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Kg m/s

m

c

Nil

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