MEDIUM
7th CBSE
IMPORTANT
Earn 100

When you touch a cold object

50% studentsanswered this correctly

Important Questions on Heat and Its Effects

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?

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

All solids expand by the same amount when heated through the same temperature increase.

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

If overhead electric cables are being laid in summers, should they be tightened up, or left a little loose?

EASY
7th CBSE
IMPORTANT
Living Science 7>Chapter 5 - Heat and Its Effects>EXERCISES>Q B
Which is the correct formula: F=95C+32 or C=95F+32?