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Glossary of Sound

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amplitude
a measure of how high a sound wave is or how much energy it has
pitch
how high or low a sound is
wavelength
the distance between a point on one wave and the same point on the next wave
speed of sound
the rate of travel of a sound wave
compression
area where air is pushed together by sound waves
sound waves
moving areas of high and low pressure
loudness
the amount of sound energy reaching your ear
sonnic boom
a sound wave created by something moving faster than the speed of sound
sound
vibrations that you can hear
echo
a sound reflection

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