Acoustic Glossary


 

J :  Sound and Vibration Terms, Definitions, Units, Measurements ..


Jerk : a Vector quantity that specifies time rate of change of Acceleration - units m/s3


Joule : J : kg·m2·s-2 : the derived SI derived unit of Work or Energy.

A Joule is the work done by a Force of 1 Newton acting through a distance of one metre.
1 J = 1 N·m = 1 kg·m2·s-2 = 1 W·s = 107 ergs


joule per cubic metre : J/m3 : Energy Density.


joule per kilogram : J/kg : Specific Energy.


joule per second : J/s : Sound Power.