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Quantity measured Name of unit Symbol for unit
Mass (m) kilogram kg
Length (l) metre m
Time (t) second s
Velocity (speed) (v) metres per second m/s
Acceleration (a) metres per second per second m/s2
Momentum (M) newton second Ns
Force (F) newton N
Energy joules J
Work joules J
Power watts W
Density (r) kilograms per metre cube kg/m3
Pressure pascal, newtons per metre square Pa, N/m3
Frequency (f) hertz Hz
Temperature degrees centigrade, kelvin oC, K
Specific heat capacity joules per kilogram per oC J/kgoC
Specific latent heat joules per kilogram J/kg
Charge (Q) coulombs C
Current (I) amps A
Voltage (V) volts V
Potential difference volts V
Resistance ohms W
 
 
 
© Keith Gibbs 2009