Vibration is a periodic back-and-forth motion of the particles of an elastic body or medium, commonly resulting when almost any physical system is displaced from its equilibrium condition and allowed to respond to the forces that tend to restore equilibrium.
Real Life examples of vibration:
1. Using a guitar as a musical instrument. The string goes back and forth which makes the sound and also the vibration.
2. Listening to a music through a speaker. The speaker makes sound vibration which makes the sound quality better.
Pendulum and spring:
Examples of real life:
