MEDIUM
7th CBSE
IMPORTANT
Earn 100

What does a bimetallic strip consist of?

Important Questions on Heat and Its Effects

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

A steel bridge expands in summer. What precautions are taken to make sure this expansion does not damage the bridge?

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

How are temperature and hotness of a body related?

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

What do you mean by 'upper fixed point'?

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

Why does a clinical thermometer have a kink in its stem?

MEDIUM
7th CBSE
IMPORTANT
Living Science 7>Chapter 5 - Heat and Its Effects>EXERCISES>Q D
Explain why a substance expands on heating?
MEDIUM
7th CBSE
IMPORTANT
Living Science 7>Chapter 5 - Heat and Its Effects>EXERCISES>Q D
Give one example where expansion on heating is put to good use. Explain the working with the help of a labelled diagram.
MEDIUM
7th CBSE
IMPORTANT
Living Science 7>Chapter 5 - Heat and Its Effects>EXERCISES>Q D
Explain why gases expand more than liquids and solids.
MEDIUM
7th CBSE
IMPORTANT
Living Science 7>Chapter 5 - Heat and Its Effects>EXERCISES>Q D
Explain with the help of a labelled diagram an experiment to show that liquids expand when heated.