Sound waves travel through the air and are basically created by the vibration of any object, which causes the air surrounding it to vibrate. This vibrating air then makes the human eardrum vibrate which the brain receives and recognizes as sound. The way sound waves travel is often compared to the way that water waves travel through water, and since water waves are easier to see, they’re often used to interpret and understand sound waves.
They travel through atoms in the air bouncing off of each other. Sounds that you hear are caused by their vibration. For example, when you tap a tuning fork, the movement of the fork pushes on air particles. The air particles are displaced and hit other ones, then move back into place, but still have kinetic energy.
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