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4 Cards in this Set
- Front
- Back
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Moments
unit: newton metre (N m) |
def: turning effect/ moment of a force
depends on: size of force how far it's applied from the pivot/ fulcrum measured by: perpendicular distance moment o force= force x perpendicular distance of the line of action of the force from fulcrum |
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Law of moment
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When a body is in equilibrium the sum of the clockwise moments about any point equals the sum of the anticlockwise moments about the same point.
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Levers
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def: any device which can turn about a pivot
In a working lever, force: fulcrum resisting force: load pivotal point: fulcrum |
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Conditions of equilibrium
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(i) The sum of the forces in one direction equals the sum of the forces in the opposite direction
(ii)The law of moments must apply |
