Flow of Heat

Q.

The invisible form of energy that causes the sensation of hotness or coldness is called?

1. temperature

2. heat

3. light

Q.

Explain the phenomenon of land breeze and sea breeze with diagrams.

Q.

When two bodies A and B are brought in contact with each other and no heat flows between them, then the __

1. True

2. False

3. body A is at a higher temperature than B.
4. body B is at a higher temperature than A.

Q. Two metallic objects A and B are brought in contact but there is no heat transfer between them. What is the possible reason for this?

1. Temperature of A > Temperature of B
2. Temperature of B > Temperature of A
3. Temperature of A = Temperature of B
4. Cannot be determined

Q. How will you show that water is a poor conductor of heat ?

Q.

Explain heat energy.

Q. Heat energy flows from one body to another if there is a difference in between the two bodies.

1. height
2. masses
3. temperatures

Q. In cold countries, why are steam pipes covered with asbestos or glass wool?