Work and Energy Quiz Questions and Answers PDF - 37

MCQ 181: The formula for the gravitational potential energy is

1. E_p = mg/h, where m is mass, g is gravitational pull and is height
2. E_p = m/gh, where m is mass, g is gravitational pull and is height
3. E_p = mgh, where m is mass, g is gravitational pull and is height
4. E_p = gh/m, where m is mass, g is gravitational pull and is height

MCQ 182: The standard symbol for heat capacity is

1. H
2. C
3. Q
4. E

MCQ 183: There are three kinds of equilibrium, which of the following is the odd one out?

1. Stable equilibrium
2. Metastable equilibrium
3. Unstable equilibrium
4. Neutral equilibrium

MCQ 184: A scientist raises the temperature of a solid of mass 40 kg from 20 °C to 40 °C, if the energy used by the solid is 8000 J, the specific heat capacity of the solid would be

1. 2 J kg^-1 °C^-1
2. 5 J kg^-1 °C^-1
3. 10 J kg^-1 °C^-1
4. 20 J kg^-1 °C^-1

MCQ 185: The specific latent heat of hot chocolate is 60 J kg^-1 and its latent heat is 3 J, the mass of the hot chocolate would be

1. 180 J
2. 20 J
3. 63 J
4. 57 J