# data[].attributes.body
Makes air particles move

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Volume

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Pitch

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We hear through vibrations in the eardrum

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Sound barrier

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Speed of sound

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Decibels

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Ears

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Hertz

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Frequency

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Frequency

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Travels fast

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We hear differently to animals

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Frequency

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Waves

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Hammer anvil and stirrup

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Bounces

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Ears

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Pitch

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everyone can hear at different pitches

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Hertz

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Inner middle and outer ear

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Hear

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Soundwaves

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Ear canal

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Sound waves

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Ear

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Pitch

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The younger you are, the higher the frequencies you can hear

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Vibrations

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Cannot be seen by human eye

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Loud

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Ear drum

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Sound waves

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Ear converts waves into a frequency/ sound

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Sound waves

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Are all surfaces reflective?

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White noise

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Pitch

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ear

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Decibels

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Decibels

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Volume

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Echoes

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Receive sound waves into the ear

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Volume

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Faster than speed of light

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Some animals hear sound that humans can’t e.g. dogs, whales

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Decibels

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Pitch

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Relies on the vibration of particles.

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Tone

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Different pitches

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MHz

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Loud

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Perforated ear drum (too much sound)

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Travels in waves

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Frequency

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Vibrations

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Doppler?
Vibrations and Waves

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Travels faster thand the speed of light

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Decibels

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Travels via vibrations

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Cannot travel through a vacuum.

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Sound waves

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Wave

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Dogs can hear higher pitched noises 🐶

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Vibrations
Ear drums
Moves in waves

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Different frequencies effect people differently

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Tone

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Travels in waves.

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Sound waves

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Vibration of hairs in ear drum

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Sound is received as vibrations within the ear

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Sound is received as vibrations within the ear

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Pitch

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Vibrations in the ear drum

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Vibrations

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Vibrations

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Waves

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Microwaves

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Reduces in energy exponentially with space.

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Sound waves

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Justin Beiber invented sound

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Vibrations

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Travels slower than light

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Anvil and hammet