EASY
8th ICSE
IMPORTANT
Earn 100

What do you understand by thermal expansion of a substance ?

Important Questions on Heat Transfer

EASY
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 6 - Heat Transfer>TEST YOURSELF>Q B
Give two examples of the substances which expand on heating.
MEDIUM
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 6 - Heat Transfer>TEST YOURSELF>Q B
Describe an experiment to demonstrate the thermal expansion in solids.
EASY
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 6 - Heat Transfer>TEST YOURSELF>Q B
State three factors on which depend the linear expansion of a metal rod on heating.
MEDIUM
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 6 - Heat Transfer>TEST YOURSELF>Q B
Two iron rods – one 10 m long and the other 5 m long, are heated to the same rise in temperature. Which will expand more ? 
MEDIUM
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 6 - Heat Transfer>TEST YOURSELF>Q B
Two identical rods of copper are heated to different temperatures — one by 5oC and the other by 10oC. Which rod will expand more ?
EASY
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 6 - Heat Transfer>TEST YOURSELF>Q B
One rod of copper and another identical rod of iron are heated to the same rise in temperature. Which rod will expand more? Give reason.
EASY
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 6 - Heat Transfer>TEST YOURSELF>Q B
Two identical rods - one hollow and the other solid, are heated to the same rise in temperature. Which will expand more ?
MEDIUM
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 6 - Heat Transfer>TEST YOURSELF>Q B
In the ball and ring experiment, if the ball after heating is left to cool on the ring for some time, the ball again passes through the ring. Explain the reason.