Sound Waves

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sound wave
A wave that transfers energy through matter and spreads outward in all directions from a vibration.
Medium
The substance through which a wave travels.
wavelength
The distance from the top of one wave to the top of the next.
frequency
The number of wavelengths that pass a reference point in a given amount of time.
pitch
The highness or lowness of a sound as determined by its frequency.
amplitude
The height of the sound wave. A measure that relates to the amount of energy in a sound wave.
volume
The loudness or softness of a sound.
echo
A repetition of a specific sound produced by reflection of sound waves from a surface.
trough
The lowest point on a sound wave.
crest
The highest point on a sound wave.
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