Sound Waves ( Loudness and Intensity)

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Information about Sound Waves ( Loudness and Intensity)

Published on March 3, 2014

Author: ProudParas


They differ from one another in three ways, namely : (a) Loudness or Intensity (b) Pitch (c) quality


Amplitude • Amplitude is the maximum displacement from a wave’s equilibrium position.

Sound Intensity increases as the amplitude and area of the vibrating body increase.

Loudness also depends on the listener.

Energy is always carried by sound waves.

Loud sounds have greater amplitude than soft sounds.

Sound waves travel in all direction.



Bel is the unit of sound intensity. It is named after Alexander Graham Bell.

Decibel- small unit

Noise is an irritating sound cause by irregular vibration at the source.

Human Ear

Thank you for Listening to Godbless :D

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