Which mechanism describes energy loss quantified by damping?

Answer

The dissipation of stored vibrational energy, such as conversion to heat or radiation as sound.

Damping is any mechanism that causes the stored vibrational energy within a system to dissipate over time, either by turning into heat within the material or by being radiated away as sound into the surroundings.

Which mechanism describes energy loss quantified by damping?
physicsfrequencySoundwaveresonance