Question

Capacity of doing work is called

• A. power
• B. momentum
• C. energy
• D. force

Answer 1

The correct option is C

energy

Explanation for the correct option

C: energy

The capacity of the body to do the work is called energy.

Explanation for the incorrect options

A: power

1. Power can be defined as the rate of doing work.

2. Mathematically, we can see that
Power = $\frac{\mathrm{work}\mathrm{done}\mathrm{or}\mathrm{energy}}{\mathrm{time}}$
B: momentum

1. It is defined as the product of the mass and velocity of the body.

2. Momentum = mass x velocity

p = m x v

D: force

Force is defined as the rate of change of momentum or product of the mass of the body and acceleration possessed by the body.

Force = $\frac{\mathrm{change}\mathrm{in}\mathrm{momentum}}{\mathrm{time}\mathrm{spent}}=\mathrm{mass}\mathrm{x}\mathrm{acceleration}$

F = $\frac{\mathrm{dp}}{\mathrm{dt}}=\mathrm{m}\mathrm{x}\mathrm{a}$

Thus, the capacity of doing work is called energy.