MEDIUM
8th ICSE
IMPORTANT
Earn 100

An empty glass bottle is fitted with a narrow tube at its mouth. The open end of the tube is kept in a beaker containing water. When the bottle is heated, bubbles of air are seen escaping into water. Explain the reason.

Important Questions on Heat Transfer

MEDIUM
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 6 - Heat Transfer>TEST YOURSELF>Q B
Which of the following will expand more, when heated to the same temperature: solid
MEDIUM
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 6 - Heat Transfer>TEST YOURSELF>Q B
When heated to the same temperature. What happens to the expansion in the case of liquid.
MEDIUM
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 6 - Heat Transfer>TEST YOURSELF>Q B
When heated to the same temperature. What happens to the expansion in the case of gas.
HARD
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 6 - Heat Transfer>TEST YOURSELF>Q B
Describe an experiment to show that same volume of different liquids heated to same rise in temperature expand by different amounts.
MEDIUM
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 6 - Heat Transfer>TEST YOURSELF>Q B

100 ml of each of the following liquid is heated from 10° C to 50° C. Which will expand more: water, benzene, alcohol.

MEDIUM
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 6 - Heat Transfer>TEST YOURSELF>Q B
Water is heated from 0°C to 4°C. Will it expand?
MEDIUM
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 6 - Heat Transfer>TEST YOURSELF>Q B
What do you mean by anomalous behaviour of water?
MEDIUM
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 6 - Heat Transfer>TEST YOURSELF>Q B
How does the density of a substance (solid, liquid and gas) change on heating ?