sound waves -speaker

sound waves are caused by

vibrating objects

speaker example starting point first …

the paper diaphragm vibrates back and forth

this vibration of the speaker causes air to vibrate and create

oscillations and rarefactions - a sound wave

the sound wave travels as

a series of oscillations and rarefactions

when a sound wave hits an object what to the air particles put on solid

pressure

the pressure causes

the solid particles closest to impact to vibrate

once the first few solid particles vibrate

it carries through the whole structure

this proccess is faster in a solid than liquid or gas as

in a solid the particles are closer together so the vibrations pass through easier

in a gas the particles are more spread out so the vibrations have to travel a further distance to get to all of them

sound waves cannot pass through space as

space is a vacuum there is no particles to move or vibrate