EASY
Earn 100

Why does a thermometer rise when placed in hot water?

50% studentsanswered this correctly

Important Questions on Heat in Everyday Life

MEDIUM
Why do electric wires sag in summers?
HARD
What is thermal expansion? Describe three applications of thermal expansion.
EASY

Give one word for the following.

S.I. unit of heat.

MEDIUM
Mention three changes that heat causes in substances.
EASY

Choose the right word from the following:
(heat, solute, condensation, melting, freezing, solution, sedimentation, soluble)
When we _____ the matter, the molecules present in it start moving faster.

EASY
Why is it advised not to fill air into cycle tyres very tightly during summer?
EASY
Which property of matter is used in the measurement of temperature?
EASY
Give one example to show that heat is a form of energy.
EASY
List four effects that heat produces.
MEDIUM
What happens when a gas is heated?
EASY
The energy transferred from one body to another body due to temperature difference between them is called :
EASY

Give one word for the following:

It is a form of energy which causes sensation of hotness and coldness.

EASY
What is heat? State its S.I. unit.
EASY
Boiling does not cause cooling.
EASY
Why do woollen clothes keep us warm when it is cold outside?
EASY
Name one each of a SI and non-SI unit of heat.
MEDIUM
Heat is a form of _____. 
EASY

Give one word for the following.

One effect of heat.