Energy - The ability to do work
Work - A force applied over a distance. For formulae, see work done by a constant force parallel to displacement and work done by any constant force, and work done by a position-dependent force
Joule - The units of work, equivalent to a Newton-meter. Also units of energy
Kinetic Energy - The energy of motion
Power - Work done per unit time. For formulas, see Formula for average power, Definition of instantaneous power, and formula for instantaneous power
Watt - Unit of power; equal to joule/second
Formula of Work and Power
| Work done by a constant force parallel to displacement | W = Fx |
| Work done by any constant force | W = Fx cosθ |
| Work-Energy Theorem | W = ΔK |
| Formula for instantaneous power | P = Fv cosθ |
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