Force and Rotation
- 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
- A pivot is the point round which the rotation happens
- Everyday examples of levers
- Wheelbarrows
- Getting lids off
- Scissors
- Arms
- Doors
- Forces cause objects to turn around pivots
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