Heat is a form of ________.

(a)

electrical energy

(b)

gravitational energy

(c)

thermal energy

(d)

None of these

Which of the following substances will absorb more heat energy?

(a)

Solid

(b)

Liquid

(c)

Gas

(d)

All the above

If you apply equal amount of heat to a solid, liquid and gas individually, which of the following will have more expansion?

(a)

Solid

(b)

Liquid

(c)

Gas

(d)

All of above

The process of converting a liquid into a solid is called_________.

(a)

sublimation

(b)

condensation

(c)

freezing

(d)

deposition

Conduction is the heat transfer which takes place in a____________.

(a)

solid

(b)

liquid

(c)

gas

(d)

All of them

What are the effects of heat?

Name three types of heat transfer

What is conduction?

With the help of a neat diagram explain the working of a calorimeter

Write a note on thermostat.

Explain the working of thermos flask.

Why does the bottom of a lake not freeze in severe winter even when the surface is all frozen?

An iron ball requires 1000 J of heat to raise its temperature by 20°C. Calculate the heat capacity of the ball.