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123-FLE
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Lever
is a bone
Fulcrum
is the joint
Effort
is the force
LOAD
is the wieght of a body part or object
1st class lever
AO1 - The fulcrum is the middle component of the lever system. AO2 - This type of lever is found in the neck when heading a football.
2nd class lever
AO1 - The load is the middle component of the lever system. AO2 - The ankle joint when pushing off the blocks to start a 100m sprint.
3rd class lever
AO1 - The effort is the middle compionent of the lever system. AO2 - The elbow joint during a bicep curl.