IBSEHS Lever Systems in the Body

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Sports

IB Sports, Exercise, and Health Science (SL)

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7 Terms

1
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Fulcrum

the point at which the lever rotates

2
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Load

the force applied by an object on the lever

3
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Effort

the force applied by the lever to move an object

4
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Functions of a lever

  1. reduces the amount of force needed to move an object

  2. increases the speed an object moves

5
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1st Class lever

Fulcrum is in the middle, effort and load are on the outside

<p>Fulcrum is in the middle, effort and load are on the outside</p>
6
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2nd class lever

the load is in the middle, effort and fulcrum are on the outside

<p>the load is in the middle, effort and fulcrum are on the outside</p>
7
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3rd class lever

effort is in the middle, load and fulcrum are on the outside

<p>effort is in the middle, load and fulcrum are on the outside</p>