Question

CHAPTER-4 (HEAT)
L. Very short answer
1. Shopkeepers selling ice blocks usually cover them with jute sacks. Explain why?
2. Define temperature.
3. At what temperature will the reading on the Fahrenheit scale be double of the reading on the
Celsius scale?
4. Why is it advised not to hold the thermometer by its bulb while reading it?
5.1) Convert 8°C to °F ii) Convert 90° to °C
6. Give two examples each of conductors and insulators of heat
7. Why do gases expand more than liquids?
8. Is the body temperature of every person 37°C?
9. How does the neat travel in air?
10. We are advised to use an umbrella when you go out in the Sun Comment
11. The handle of a pressure cooker is covered with the thick plastic. Explain Why?
in Convection and co​

Answer 1

Answer:

2) an indicator of the degree of hotness or coldness of an object or a substance.

6) metal and copper are the good conductor of heat .

and

wood and cotton are the bad conductor of heat .This bad conductor is known as insulators.

now I don't know the answer of 1,3,4,5,7,8,9,10,11 sorry for that.

Answer 2

class batao

to answer send karte hai

school bhi

well mark me as brain least