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Moment and Levers IGCSE Physics @ferrytanoto
The turning effect or moment of a force is a measure of the turning effect of a force.
Moment of a force is measured by multiplying the forceby the perpendicular distance of the line of action of the force from the fulcrum.
Moment of a force depends on the magnitude of the force and the perpendicular distance from the line of action of the force to the pivot.
If an object is in equilibrium there is no resultant turning effect and no resultant force.
The Law of Moments (The Law of the Lever) When a body is in equilibrium the sum of the clockwise momentsabout any point equals the sum of the anticlockwise moments about the same point.
A leveris any device which can turn about a pivot. In a working lever a force called the effortis used to overcome a resisting force called the load. The pivotal point is called the fulcrum.
Levers Clockwise moment = Anticlockwise moment
Condition for Equilibrium The sum of the forces in one direction equals the sum of the forces in the opposite direction. The law of moments must apply.

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Moment and levers

  • 1. Moment and Levers IGCSE Physics @ferrytanoto
  • 2. The turning effect or moment of a force is a measure of the turning effect of a force.
  • 3. Moment of a force is measured by multiplying the forceby the perpendicular distance of the line of action of the force from the fulcrum.
  • 4. Moment of a force depends on the magnitude of the force and the perpendicular distance from the line of action of the force to the pivot.
  • 5. If an object is in equilibrium there is no resultant turning effect and no resultant force.
  • 6. The Law of Moments (The Law of the Lever) When a body is in equilibrium the sum of the clockwise momentsabout any point equals the sum of the anticlockwise moments about the same point.
  • 7. A leveris any device which can turn about a pivot. In a working lever a force called the effortis used to overcome a resisting force called the load. The pivotal point is called the fulcrum.
  • 8. Levers Clockwise moment = Anticlockwise moment
  • 9.
  • 10. Condition for Equilibrium The sum of the forces in one direction equals the sum of the forces in the opposite direction. The law of moments must apply.