define sound and explain how it is produced in physics class 9
Answers
Answer:
In physics, sound is produced in the form of a pressure wave. When an object vibrates, it causes the surrounding air molecules to vibrate, initiating a chain reaction of sound wave vibrations throughout the medium.
Explanation:
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What is sound
Sound is a mechanical energy which produces sensation of hearing. Sound is produced due to vibration of different objects. • Sound wave propagates as compressions & rarefactions in the medium. Sound waves are longitudinal waves.
How is sound produced
Sound is produced due to the vibration of objects. Vibration is a periodic back-and-forth motion of the particles of an elastic body or medium about a central position. ... Stretched strings of a guitar vibrate to produce sound. When membrane of a table is struck, it vibrates to produce sound