MEDIUM
7th CBSE
IMPORTANT
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Why does a flame always burn upwards?

Important Questions on Heat

EASY
7th CBSE
IMPORTANT
LEARNING edge SCIENCE and TECHNOLOGY 7>Chapter 4 - Heat>Worksheet SA>Q A
The Sun's heat reaches us by _____.
EASY
7th CBSE
IMPORTANT
LEARNING edge SCIENCE and TECHNOLOGY 7>Chapter 4 - Heat>Worksheet SA>Q B
Infrared radiations can travel only through solids.
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.
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
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 FA>Q C
Hot water poured in a stainless steel glass cools faster than the hot water in a plastic glass or ceramic glass. Why does this happen?
EASY
7th CBSE
IMPORTANT
LEARNING edge SCIENCE and TECHNOLOGY 7>Chapter 4 - Heat>Worksheet FA>Q C
A room heater increases the temperature of a room. Which modes of heat transfer are involved in the process?
MEDIUM
7th CBSE
IMPORTANT
LEARNING edge SCIENCE and TECHNOLOGY 7>Chapter 4 - Heat>Worksheet FA>Q C
If you had to use a clinical thermometer in a lab, what problem will you encounter?