AQA GCSE Physical Education · 8582
Paper 1
Revise: Mechanical advantageIn the body, a muscle supplies the effort to move a bone against a load, or resistance. That resistance might be body weight or a weight held in the hand.
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GCSE Physical Education · key term
The load that the effort must overcome, such as body weight or an object being lifted.
Used by AQA
Paper 1
Revise: Mechanical advantageIn the body, a muscle supplies the effort to move a bone against a load, or resistance. That resistance might be body weight or a weight held in the hand.
Label both arms from the fulcrum: the effort arm ends at the effort, and the resistance arm ends at the load.
To justify which lever has the greatest mechanical advantage, compare effort arm ÷ resistance arm, not effort-arm length alone.
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