Question # 1

Flow of thermal energy from hot body cold body is called:

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Specific heat

Latent heat

Transfer of heat

Heat capacity

The changing of a liquid into vapours from the surface of the liquid

without heating:

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Cooling

Vaporization

Evaporation

Sublimation

Which of the following material has large specific heat?

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Copper

Ice

Water

Mercury

Amount of heat that flows in unit time is called:

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Rate of flow of heat

Q/t

Conductivity

Both A and B

The unit of kinetic energy is:

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J

N

Km

Pa

All forces are example of contract forces except:

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Air resistance

Tensional

Push force

Gravitational

Newton's law of gravitation resembles with

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1st law of motion

2nd law of motion

3rd law of motion

Law of gravitation

S.I unit of pressure is :

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Nm^-2

Newton

Joule

Watt

The unit of stress is:

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Newton

Pascal

Nm^-2

m³

All divers need to wear seat belt because of effect of:

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Air resistance

Tensional

Push force

Gravitational

If the force of 25 N is acting along the string to balance the weight then tension in string is

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25 N

50 N

Zero

None

If the velocity of body decreases with time then acceleration will be.

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Positive

Negative

Variable

Uniform

Above of mass 50 kg is raised to a height of 3m. what is its P.E

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500 J

1000 J

1500 J

2000 J

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