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Common SI Physics Units Quantity Unit abbreviation Base Units formula letter Time s Distance meters (m) Velocity m/s Mass Kg Acceleration m/s2 Density Kg/m3 Weight Kgm/s2 Impulse (change in momentum) Kgm/s Area m2 Energy joules Kgm2/s2 J t x or y v M a λ, σ, ρ w Δp A E V I p λ c Volume m3 Inertia Kgm2 Momentum Kgm/s Wavelength m Speed of light Work joules Torque Frequency hertz Force Newton Pressure Pascal Power (watts) watt END OF FIRST YEAR UNITS J Nm Hz N N/m2 W (J/s) m/s Kgm2/s2 Kgm2/s2 1/s Kgm/s2 Kg/s2m Kgm2/s3 q W τ ν F P P Charge Power (watts) Force Current Dipole Moment watt Newton ampere W (J/s) N Amp. (Coul*m) coul Kgm2/s3 Kgm/s2 coul/s. coul*m Energy Capacitance Resistance Voltage joules Farad ohm Volt J F or (Coul/Volt) Ω or (V/A) V or (J/coul) Kgm2/s2 s2coul2/Kgm2 Kgm2/scoul2 Kgm2/s2coul E (Nm2/coul) or (V*m) Kgm3/s2coul E Electric Flux Electric Field* Magnetic Flux Mag. Field** Inductance Volt per meter Weber 2 (V/m) or (N/coul) Kgm/s coul 2 2 (Volt*s) or (Tm ) Kgm /scoul 2 Tesla T or (N/A*m) or (Wb/m ) Kg/scoul Henry (Flux/amp) H or (Tm2/A) Kgm2/coul2 *(also known as electric flux density) **(also known as magnetic flux density) P F I p C R V E B B L http://www.alcyone.com/max/reference/physics/units.html