Question # 1

Heat travels from __________

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Colder to hotter

Hotter to colder

Both a & b are possible

None of above

Evaporation takes place at temperature :

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100°C only

0°C only

35°C Only

At all temperature

A large water reservoir keeps the temperature of nearby land moderate due to

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Low temperature of water

Low specific heat of water

Less absorption of heat

Large specific heat of water

Crocus flower open when the temperature is:

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23 ^oC

26^oC

29^oC

32^oC

Water on cooling below 4 ^oC begins to:

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Expand

Contract

Boils

None of these

The Celsius lower reference point is 0^oC while upper reference point is:

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212 ^oC

180^oC

100^oC

110^oC

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

In ___________ (CFC) was found reacting with ozone.

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1920s

1970s

1950s

1960s

The value of absolute zero kelving temperature is:

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273^oC

273^oK

273^oF

-273^oC

Normal human body temperature is

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15oC

37oC

37oF

98.6oC

In symbols, co-efficient of volume expansion is defined as

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β = ΔT/V∘ΔV

β = ΔV/ΔT

β = ΔV/V∘ΔT

β = ΔT/ΔV

Absolute zero is equal to:

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0°C

-273°C

0°F

All

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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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