What is meant by Sound?
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Sound is a type of energy made by vibrations. When an object vibrates, it causes movement in surrounding air molecules. These molecules bump into the molecules close to them, causing them to vibrate as well. This makes them bump into more nearby air molecules.
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Anything which you can hear is called sound.
It is basically a form of energy that travels in the form of vibration through mediums.
Frequency of sound is measured in Hertz (hz) while sound is measured in decibels (db)
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