Vibration is the oscillating or repetitive motion of an object around an equilibrium point.

It can be:

Free vibration – when an object vibrates after being disturbed (like a guitar string plucked once).

Forced vibration – when a continuous force causes the object to vibrate (like a speaker cone vibrating from electrical input).

Vibrations are described by:

Amplitude – how strong the vibration is.

Frequency – how fast it vibrates (measured in Hertz).

Damping – how quickly the vibration fades.

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