Force and Rotation

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  • Created by: Z Shah
  • Created on: 12-04-15 17:28
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  • Force and Rotation
    • Forces cause objects to turn around pivots
      • A pivot is the point round which the rotation happens
        • Like the middle of a see - saw
        • Also known as a fulcrum
      • A Lever is a simple machine.
        • It's called a machine because it helps us to do work more easily.
      • Lifting a rock is pretty hard work, if not impossible for the really big ones
        • But using a long lever makes the effort force required from you very much less, because the long lever multiplies the force you exert
      • The longer the lever, the greater the turning force about the pivot
    • Everyday examples of levers
      • Wheelbarrows
      • Getting lids off
      • Scissors
      • Arms
      • Doors

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