Acoustics

= Distance traveled in unit time (m/s). = = Number of complete waves in one second (Hz). = = Distance between matching points on the wave (m). = = Vibration parallel to direction of travel. = = Vibration at right angle to direction of travel. =
 * =__//** Speed: **//__=
 * =__//** Frequency: **//__=
 * =__//** Wavelength: **//__=
 * =__//** Longitudinal: **//__=
 * =__//** Transverse: **//__=

=**__NOTES__**=
 * =Sound is normally caused by objects vibrating.=
 * = It is variations in pressure what gives you a sound wave. =
 * =When we clap our hands you can see that they vibrate quite a lot, but this is actually the source of noise, you are creating acceleration noise. The air between our hands creates a little compression wave (witch is an acoustic wave, it's what we hear).=
 * = If waves are above of the speed of sound, these waves get bunch together and eventually form a shockwave, wich is the sonic boom your hear. =