Question

The bullet fired from a gun gets heated on striking a target because

• A. it loses energy
• B. mechanical energy is converted in to heat energy
• C. of latent heat
• D. specific heat

Answer 1

The correct option is B mechanical energy is converted in to heat energy

That a bullet fired from a gun gets heated on striking a target can be explained by the $FirstlawofThermodynamics$: Energy in the universe is neither created nor destroyed, it is only translated from one form to another.

When the bullet strikes the target there is heat generated because the kinetic energy of the moving bullet is transformed into heat energy due to the friction etc. between bullet and target.