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Sound - Coggle Diagram
Sound
What is Sound
Sound is a longitudinal wave, created when things vibrate. This causes the particles around it to collide with each other and oscillate. Then those particles collide with the particles near them and so on and so on. Eventually this gets to your ear and you can hear things.
Sound is a mechanical, longitudinal wave, unlike light and water waves. Sound needs a medium to travel through, so that is why no one can hear you scream in space, as space is a vacuum
Sound travels the fastest in solids as the particles are closest together and can collide with each other easily and fast. Sound travels slowest in gases
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The Ear
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The pinna collects the sound and tells you where it is coming from. The sound then goes down the ear canal
The sound travels down the ear canal to the ear drum. The ear drum vibrates back and forth and transfers the sound waves to the ossicles.
The ossicles amplify the vibrations and send those vibrations to the cochlea. The sensory hairs in the cochlea track these vibrations and send signal to the brain via the auditory nerve
