Differentiate between resonance and forced vibrations.

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Solution

When an external force is applied to a body, the periodic frequency of the body is equal to the natural frequency of the body.
The body readily begins to vibrate or is free to vibrate with an increased amplitude. This phenomenon is known as resonance.
When a body executes vibrations under the action of an external periodic force, then the vibrations are called forced vibrations.
Difference between resonance and forced vibrations:
Resonance Forced vibrations
Resonant vibrations are the vibrations of a body due to an external periodic force with a frequency that is exactly equal to the body's natural frequency.
The amplitude of vibration is large.
The wine glass will ring at its natural frequency.
Forced vibrations are the vibrations of a body due to an external periodic force with a frequency that differs from the body's natural frequency.
The amplitude of vibration is relatively small.
Examples of force vibrations are guitar, washing machine

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Similar questions

A wire stretched between the two fixed supports, is plucked exacly in the middle and then released. It executes (neglect the resistance of the medium) :

(a) resonant vibrations (b) natural vibrations

When a body vibrates under a periodic force, the vibrations of the body are :

(a) natural vibrations (b) damped vibrations

State Two differences between the natural and forced vibrations.

Q. Differentiate between the forced and resonant vibrations.

Difference between forced vibrations and resonance.

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Resonance	Forced vibrations
Resonant vibrations are the vibrations of a body due to an external periodic force with a frequency that is exactly equal to the body's natural frequency. The amplitude of vibration is large. The wine glass will ring at its natural frequency.	Forced vibrations are the vibrations of a body due to an external periodic force with a frequency that differs from the body's natural frequency. The amplitude of vibration is relatively small. Examples of force vibrations are guitar, washing machine