القوى والحركة: أنواع الروافع

Levers are simple machines that make tasks easier by amplifying force. They consist of a rigid arm and a fulcrum. Levers are used in heavy tasks to reduce effort. An example is using a lever to move a large rock, where the lever acts as the arm, the rock as resistance, and a small stone as the fulcrum. The closer the fulcrum is to the resistance, the less effort is needed.

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