Acoustics



**Acoustics**  **Speed: //According to www.wordreference.com Speed is... //** The rate at which someone or something moves or operates or is able to move or operate. Syn: rapidity of movement or action. In sound speed is the rapidity with which the sound wave travels over a time unit.

1. The rate per second of a vibration constituting a wave, e.g. sound, light, or radio waves. 2. The rate at which something occurs over a particular period or in a given sample.
 * Frequency: ****// According to www.wordreference.com frequency is... // **

 T he distance between successive crests of a wave, especially as a distinctive feature of sound, light, radio waves, etc.
 * Wavelength: ****// According to www.wordreference.com Wavelength is... // **

Vibration paralel to direction of travel
 * Longitudinal: **

Vibration at right angle to irection of travel
 * Transverse: **