Template:Sound Waves
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Wave
Sound Is a Wave (it needs a medium) Transverse vs. Longitudinal Waves medium http://dictionary.reference.com/search?q=medium
- An intervening substance through which something else is transmitted or carried on.
- move in the same direction as the wave between 0° and 180° to the direction of the wave.
A sound wave is a longitudinal wave
- move at right angles to the direction of the wave.
Water is a transverse wave
Transverse Wave and Longitudinal Waves
http://www.phy.ntnu.edu.tw/java/waveType/waveType.html
Neither the molecules in the air or those in water actually move along with the wave. Air and water are simply a medium for the wave to pass through.