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What i have learnt about MOMENTS......
DEFINITION: A moment of a force is the turning effect of the force about a pivot. FORMULA: force x perpendicular distance from pivot to the line of action of the force = Force x Distance = F x D SI UNIT: Newton metre / Nm EXAMPLES: (1)Opening a door by pulling its handle (2)Turning a nut with a spanner (3)Steering a car by turning its steering wheel. (4)Playing on a see-saw (5)Opening the lid of a tin using the end of a spoon 2 TYPES OF MOVEMENTS: -Clockwise -Anticlockwise THE MOMENT OF FORCE DEPENDS ON: -The magnitude of the force -The perpendicular distance from the line of action of the force to the pivot THE MOMENT OF A FORCE IS ALSO KNOWN AS: Torque |
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