Question

H. Very short-answer type questions :
1. What do you mean by convection of heat?
2. What are convectional currents?
3. What is temperature?
4. What are insulators of heat?
5. What are the common scales in which temperature are usually measured?​

Answer 1

Explanation:

1)What do you mean by convection of heat?

=>Heat convection is a mode of heat transfer by the mass motion of a fluid such as air.

• Heat convection occurs to the surface of an object where the surrounding fluid of object is heated and moved energy away from the source of heat.

2. What are convectional currents?

=>A convection current is a process that involves the movement of energy from one place to another. It is also called convection heat transfer.

• The convection currents tend to move a fluid or gas particles from one place to another.

3. What is temperature?

=>Temperature is a physical quantity that expresses hot and cold.

4. What are insulators of heat?

=>A material that does not let heat and electricity travel through it easily is known as an insulator.

• In many situations, we want to trap heat and slow down its flow, or stop the flow of electricity and prevent electric shocks.
• Plastic, rubber, wood, and ceramics are good insulators.

5. What are the common scales in which temperature are usually measured?

=>The three most common temperature scales are

1. Fahrenheit,
2. Celsius, and
3. Kelvin.