EASY
7th ICSE
IMPORTANT
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A laboratory thermometer has no kink.

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Important Questions on Heat

EASY
7th ICSE
IMPORTANT
Lakhmir Singh's Science Physics>Chapter 5 - Heat>EXERCISES>Q 5
Digital thermometers have mercury.
EASY
7th ICSE
IMPORTANT
Lakhmir Singh's Science Physics>Chapter 5 - Heat>EXERCISES>Q 6
The decrease in size of an object on cooling, is called expansion.
MEDIUM
7th ICSE
IMPORTANT
Lakhmir Singh's Science Physics>Chapter 5 - Heat>EXERCISES>Q 7

Air expands on heating.

EASY
7th ICSE
IMPORTANT
Lakhmir Singh's Science Physics>Chapter 5 - Heat>EXERCISES>Q 8
Wool is a poor conductor of heat due to which woollen clothes stop the flow of heat from our warm body to the cold surroundings.
EASY
7th ICSE
IMPORTANT
Lakhmir Singh's Science Physics>Chapter 5 - Heat>EXERCISES>Q 9
The silvering of the wall of thermos flask minimises the heat loss by radiation.
EASY
7th ICSE
IMPORTANT
Lakhmir Singh's Science Physics>Chapter 5 - Heat>EXERCISES>Q 1

Give two examples of thermometers.

EASY
7th ICSE
IMPORTANT
Lakhmir Singh's Science Physics>Chapter 5 - Heat>EXERCISES>Q 2

Give two examples.

Breeze blow in coastal areas

EASY
7th ICSE
IMPORTANT
Lakhmir Singh's Science Physics>Chapter 5 - Heat>EXERCISES>Q 3

Give two examples of insulators.