Review of Sound Waves. Waves move and carry energy Waves travel in a medium Waves are created when a source of energy causes a medium to vibrate Waves spread out as they move Waves have different sizes and shapes Waves pass through each other
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Molecules in the air vibrate about some average position creating the compressions and rarefactions.
wave particles vibrate back
and forth along the path that
the wave travels.
Frequency – How many wavelengths pass a point in a unit of time (the shorter the wavelength, the higher the frequency.)
Image: scanned from Multimedia Concepts – James Schuman