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Work done
force x distance
Kinetic energy
0.5 x mass x ( speed )^2
Gravitational potential energy
mass x gravity x height
Power
work done /time = energy/time
Efficiency
useful output / input
Charge
current x time
Power
potential difference x current
Power
( current )^2 x resistance
Energy transferred
charge flow x potential difference
Density
mass / volume
Moment
force x distance
Distance
speed x time
Acceleration
change in velocity / time taken
Weight
mass x gravity
Force
spring constant x extension
Force
mass x acceleration
Momentum
mass x velocity
Pressure
force / area
Wave speed
frequency x wavelength