Lever system

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Last updated 7:24 AM on 10/10/26
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6 Terms

1
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Fulcrum

location of the pivot point


2
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Load

  • center of mass (cm)

  • weight of body (kg)


3
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Effort

  • location of where insertion is (cm)

  • how much force the muscle is generating (kg)


4
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Force Equation

force of muscle contraction (kg) x distance between insertion & fulcrum [EFFORT] = weight moved (kg) x distance between center of weight & fulcrum [LOAD]

5
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Distance Equation

Muscle contraction (cm) / distance from fulcrum to effort (cm) = how much body moves (cm) / distance from fulcrum to load (cm)

6
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FLE —> 123 Lever systems

  • fulcrum in center = 1st

  • load in center = 2nd

  • effort in center = 3rd