Distinguish between free vibrations and forced vibrations.

Distinguish between free vibrations and forced vibrations. 
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1 Answer

Answer :

Free vibrations
Forced vibrations
The vibrations performed by a body when only once disturbed from its equilibrium position and vibrates with a natural frequency are called free vibrations.
When a body is continuously disturbed by a periodic force, then the particle cannot vibrate with its natural frequency but it starts vibrating with the frequency of periodic force. These vibrations are called forced vibrations.
Examples: Vibrating tuning fork, Concrete bridge, Vibration of air column, etc. 
Examples: Tuning fork kept on vibrating engine, Concrete bridge in earth quake, Cricketers hanging ball, etc.
Body vibrates with natural frequency.
Body vibrates with external frequency.
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