Work (English)
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Definition (keystage 3)
A force which moves a particle through some distance, or energy which acts for some length of time, is said to do work.
Definition (advanced level)
Work is the integral of force with respect to position, or the integral of energy with respect to time.
If f(x) is the force exerted on a particle when it is at position x, then the work done by this force as the particle moves along a given path is the integral of f.dx along that path.
Work has dimensions ML2T−2 and SI unit J.
If f(x) is the force exerted on a particle when it is at position x, then the work done by this force as the particle moves along a given path is the integral of f.dx along that path.
Work has dimensions ML2T−2 and SI unit J.
Relations
- broader:
- (en) Physical measure
- narrower:
- (en) Work done by a force
- (en) Work done in circular motion
- references:
- (en) Curvilinear integral
- (en) Distance
- (en) Force
- (en) Integral
- (en) Time
- referenced:
- (en) Work-energy principle
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