Question # 1

A simple way to know how much a body is hot or cold is

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Our sense of touch

Termometer

Thermostat

Setback state

Specific heat for iron in joule per kilogram per kelvin is:

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387

920

470

903

The unit of Heat is:

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Kelvin

Joule

Jkg^-1 K^-1

kg

___________ specific heat of water is benefits in sustaining life.

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High

Low

Medium

None

Steam is used to run machine because of high amount of ___________ heat.

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Latent

Great

Large

Nil

SI unit of temperature is.

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Fahrenheit

Centigrade

Kelvin

All of these

The upper reference point in thermometer is used to check:

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Melting point

Freezing point

Boiling point

Streaming point

If a liquid of mass 'm' requires thermal energy 'ΔQv' to completely change into gas at its boiling point without any change in its temperature, then its latent heat of vapourization can be calculated as following:

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Hv = m/ΔQv

Hv = mΔQv

Hv = cmΔQv

Hv =ΔQv/m

Alcohol has specific heat in Jkg^-1 K^-1 is:

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2500

4200

1000

138.6

The device that is used to measure the temperature of a body called

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Thermometer

Acidimeter

Barometer

Clock timer

When a substance is changed from its solid state to liquid state by adding heat, the process is called

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Melting

Fusion

Freezing

A and B both

Which expands on heating?

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Water

Steel

Copper

All are true

Which gas is used inspite of Freon gas in refrigerator?

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CO₂

H₂

NH₃

N₂

The range of clinical thermometer is:

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90 ^oC - 106^oC

35^oC - 42^oC

100^oC - 132^oC

24^oC - 35^oC

Water on cooling below 4 ^oC begins to:

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Expand

Contract

Boils

None of these

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9th Class Physics Chapter 8 Thermal Properties of Matter English Medium KPK Boards Online Mcqs MCQs With Answers

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