HARD
8th ICSE
IMPORTANT
Earn 100

Explain, with the help of a diagram, the working of an automatic fire alarm.

Important Questions on Heat Transfer

HARD
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 6 - Heat Transfer>Exercises>Q G
How can you say different liquids have different rates of expansion for the same rise in temperature?
HARD
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 6 - Heat Transfer>Exercises>Q G
Describe an experiment to show that solids expand on heating.
HARD
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 6 - Heat Transfer>Exercises>Q H
Give reason: Evaporation is accompanied by cooling.
EASY
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 6 - Heat Transfer>Exercises>Q H
Give reasons for: Solids expand the least on heating.
HARD
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 6 - Heat Transfer>Exercises>Q H
Give reasons for: Small gaps are left between successive rail tracks.
HARD
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 6 - Heat Transfer>Exercises>Q H
Give reasons for: Electric transmission lines are kept loose between electric poles.
HARD
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 6 - Heat Transfer>Exercises>Q H
Give reasons for: A glass tumbler cracks on heating.
HARD
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 6 - Heat Transfer>Exercises>Q H
Give reasons for: Liquids and gases have no linear or superficial expansion.