The temperature of a body depends on the average …………… of the molecules.

1. potential energy
2. kinetic energy
3. elastic energy
4. atomic energy

The temperature at which pressure and volume of a gas becomes zero is :

1. 0° C
2. 0 K
3. 0° F
4. 273 K

Celsius and Fahrenheit scales are related as :

1. $\dfrac{\text{C}}{5}$ = $\dfrac{\text{F - 32}}{9}$

2. $\dfrac{\text{C}}{9}$ = $\dfrac{\text{F + 32}}{5}$

3. 5C = $\dfrac{9}{\text{F + 32}}$

4. $\dfrac{\text{C}}{5}$ = $9(\text{F + 32})$

The increase in the length of a solid on heating is called :

1. contraction
2. linear expansion
3. cubical expansion
4. superficial expansion