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How does the sound produced by a vibrating object in a medium ... - Science
Question
How does the sound produced by a vibrating object in a medium reach your ear?
Answer
When an object vibrates, it sets the particles of the medium around it into vibration.
The vibrating object pushes the air particles creating a region of high pressure called Compression.
When the object moves back, it creates a region of low pressure called Rarefaction.
These particles do not travel all the way to the ear; instead, they pass the disturbance to the adjacent particles and return to their original position.
This series of compressions and rarefactions travels through the medium as a sound wave and reaches our ear, causing the eardrum to vibrate.