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Physical Quantity Unit
Distance [m]
Time [sec]
Mass [kg]
Mass density [kg/m3]
Velocity [m/sec]
Acceleration [m/sec2]
Force [Newton] = [kg-m/sec2]
Pressure [N/m2] = [pascal]
Work or Energy [Joule] = [N-m]
Momentum [kg-m/sec]
Angle degree or radian, both unitless
Angular velocity radian [1/sec]
Angular acceleration radian [1/sec2]
Torque [m-N]
Angular momentum [kg-m2/sec]
Moment of inertia [kg-m2]

Electricity and Magnetism

Physical Quantity Unit
Electric Charge[Coulomb]
Electric Current[Ampere] = [Coulombs/second]
Electric Field[Newtons / Coulomb]
epsilon0[Coulomb2 / meter2 / Newton]
Electric Flux[Coulomb meter2]
Electric Potential[Volts] = [Joules / Coulomb]
Capacitance[Farad] = [Coulombs / Volt]
Magnetic Field[Tesla] = [Newton second / Coulomb / meter]
mu0[Tesla meter / Ampere]
Magnetic Flux [Weber] = [Tesla meter2]
Inductance[Henry] = [Volt seconds / Ampere]
Resistance[Ohm] = [Volts / Ampere]

Note on SI Units

The basic SI units are the meter, kilogram, second, ampere, (degree) kelvin, and candela. All other units are derived from these six.

Last revised 1999/08/20