Gracey & Associates
Noise and Vibration
Glossary - J
GLOSSARY INDEX:
A B C
D E F
G H I
J K L
M N O
P Q R
S T U
V W X
Y Z
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.
Equal to the work done by a force of 1 newton acting through a distance of one meter.
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.
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