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
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