EASY
7th CBSE
IMPORTANT
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Infrared radiations can travel only through solids.

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Important Questions on Heat

EASY
7th CBSE
IMPORTANT
LEARNING edge SCIENCE and TECHNOLOGY 7>Chapter 4 - Heat>Worksheet SA>Q B
A shiny surface absorbs most of the heat.
EASY
7th CBSE
IMPORTANT
LEARNING edge SCIENCE and TECHNOLOGY 7>Chapter 4 - Heat>Worksheet SA>Q B
Electric cables sag in summer.
EASY
7th CBSE
IMPORTANT
LEARNING edge SCIENCE and TECHNOLOGY 7>Chapter 4 - Heat>Worksheet SA>Q B
A clinical thermometer has constriction above the bulb.
EASY
7th CBSE
IMPORTANT
LEARNING edge SCIENCE and TECHNOLOGY 7>Chapter 4 - Heat>Worksheet SA>Q C
On heating, maximum expansion is observed in :
MEDIUM
7th CBSE
IMPORTANT
LEARNING edge SCIENCE and TECHNOLOGY 7>Chapter 4 - Heat>Worksheet SA>Q C
A liquid gets heated up by -
EASY
7th CBSE
IMPORTANT
LEARNING edge SCIENCE and TECHNOLOGY 7>Chapter 4 - Heat>Worksheet SA>Q C
Heat transfers from
EASY
7th CBSE
IMPORTANT
LEARNING edge SCIENCE and TECHNOLOGY 7>Chapter 4 - Heat>Worksheet SA>Q C
In the convection mode of heating, the particles get heated up and :
EASY
7th CBSE
IMPORTANT
LEARNING edge SCIENCE and TECHNOLOGY 7>Chapter 4 - Heat>Worksheet SA>Q C
On absorbing heat the particles of matter :