Heat Capacity: Physics MCQs with Answers PDF Download – Test 142

Amount of potential energy depends on

1. force between the particles
2. temperature of the particles
3. force and distance between the particles
4. distance between the particles and their temperature

Resistance of a copper wire at ice point is 50 Ω and 100 Ω at steam point, and resistance of wire is 70 Ω room temperature would be

1. 10 °C
2. 20 °C
3. 30 °C
4. 40 °C

Density is related to mass by

1. v/m, where v is volume and m is mass
2. m/v, where m is mass and v is volume
3. a/m, where a is area and m is mass
4. m/a, where is mass and a is area

Statement related to center of gravity that is incorrect is

1. The center of gravity of an object is defined as the point through which its whole weight appears to act.
2. The center of gravity is sometimes confused with the center of mass.
3. The center of gravity always lies inside the object.
4. For an object placed in a uniform gravitational field, the center of gravity coincides with the center of mass.

During the process of boiling, cause that turns liquid into gas is

1. The weakness of intermolecular bonds
2. The decrease in the rate of kinetic energy
3. The decrease in the rate of vibration of particles
4. The increase in the collision of particles