Definitions to know (Moments) - Physics

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5 Terms

1
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Moment

The turning effect of a force about a point.

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Formula for moment

L = F x d

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Weight on Earth

Force of attraction between an object and the centre of the earth, measured in N.

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The principle of moments

When an object is in equilibrium, the sum of the clockwise moments about any point is equal to the sum of the anticlockwise moments about the same point.

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Formula (principle of moments)

Fac x dac = Fcw x dcw