Question

G
Write T for true and F for false statements.
1. In the CGS system, heat is expressed in joules.
2. Sometimes, however, our sense of touch is not reliable in telling us whether an 3.
object is really hot or cold.
3. Laboratory thermometer is also called as Doctor's thermometer.
4. A laboratory thermometer has no kink.
5. Digital thermometers have mercury.
6. The decrease in size of an object on cooling, is called expansion.
7. Air expands on heating.
8. Wool is a poor conductor of heat due to which woollen clothes stop the flow of heat
from our warm body to the cold surroundings.
9. The silvering of the wall of thermos flask minimises the heat loss by radiation.​

Answer 1

Explanation:

1.False

3.False

7.True

Answer 2

Answer:

True

Explanation:

Doctor's thermometer.

4. A laboratory thermometer has no kink.

5. Digital thermometers have mercury.

6. The decrease in size of an object on cooling, is called expansion.

7. Air expands on heating.

8. Wool is a poor conductor of heat due to which woollen clothes stop the flow of heat

from our warm body to the cold surroundings.

9. The silvering of the wall of thermos flask minimises the heat loss by radiation