EASY
7th CBSE
IMPORTANT
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A bimetallic strip is made of metals M1 and M2. On cooling through the same temperature, M1 contracts more than M2. When the strip is heated, it will

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Important Questions on Heat and Its Effects

MEDIUM
7th CBSE
IMPORTANT
Living Science 7>Chapter 5 - Heat and Its Effects>EXERCISES>Q A
A 10 °C fall in temperature is equal to :
EASY
7th CBSE
IMPORTANT
Living Science 7>Chapter 5 - Heat and Its Effects>EXERCISES>Q A
Temperature is measured by expansion on heating. Expansion in which of these is most commonly used?
MEDIUM
7th CBSE
IMPORTANT
Living Science 7>Chapter 5 - Heat and Its Effects>EXERCISES>Q A
When you touch a cold object
EASY
7th CBSE
IMPORTANT
Living Science 7>Chapter 5 - Heat and Its Effects>EXERCISES>Q B
Heat is a form of _____. (Force/Energy)
MEDIUM
7th CBSE
IMPORTANT
Living Science 7>Chapter 5 - Heat and Its Effects>EXERCISES>Q B
For scientific work, the _____ (Celsius/Kelvin) temperature scale is used.
EASY
7th CBSE
IMPORTANT
Living Science 7>Chapter 5 - Heat and Its Effects>EXERCISES>Q B
The apparatus commonly used in the laboratory to show expansion on heating is the ring and _____ apparatus.
EASY
7th CBSE
IMPORTANT
Living Science 7>Chapter 5 - Heat and Its Effects>EXERCISES>Q B

A solid is heated from 0° to 100°C. Its volume increases from V1 to V2. It is now cooled to 0°C. Will its volume at 0°C be V1 or V2?

EASY
7th CBSE
IMPORTANT
Living Science 7>Chapter 5 - Heat and Its Effects>EXERCISES>Q B

Which of these expand the most on heating − solids, liquids or gases?