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Mechanisms - Coggle Diagram

- - - - The lever is balanced when the effort F, multiplied by its distance d is equal to the load R multiplied by its distance from the fulcrum r. This is called the law of the lever, which is expressed by this equation: F x d = R x r
    - - Class 1: The load and the effort are on opposite sides of the fulcrum.
        
        The effect of the effort applied can be multiplied or reduced depending on where the fulcrum is in relation to the load.
      - Class 2: The load is between the effort and the fulcrum.
        
        The effect of the effort is always multiplied: (d > r)
      - Class 3: The effort is between the fulcrum and the load.
        
        The effect of the effort is always reduced (d < r)
  - - - The effort needed to move a load with a moveable pulley is half oi the effort needed with a fixed pulley. This type of pulley means we can lift weights with less effort.
      - A moveable pulley is balanced when it fulfills this equation: F = R/2
  - - - Uses: wells, gym equipment
      - Pulleys are used to raise and lower loads easily because we use our
        own weight to counteract them
      - A fixed pulley is balanced when the effort, F,is equal to the load. R: F = R