BRAINCAKECouples
A couple is a pair of equal and opposite forces acting on a body along parallel lines.
The moment of a couple = one of the forces × the perpendicular distance between the lines of action of the forces.
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Key terms in this lesson
- Moment
- The turning effect of a force about a pivot, equal to the force multiplied by the perpendicular distance from the pivot to the line of action of the force.
More in Forces in Equilibrium
- Three Forces in Equilibrium
- Moments
- The Principle of Moments
- Centre of Mass
- Stable Equilibrium
- Tilting and Toppling
- Tilting
- Toppling
All 20 lessons in Forces in Equilibrium · All AQA AS-level Physics topics