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DT EOY Revision (Mechanical Advantage (The ratio of the force produced by…
DT EOY Revision
Mechanical Advantage
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The further the perpendicular distance from the pivot, the less force is necessary in order in lift the load.
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Classes of Levers
2nd Class Lever
Examples: Door, Wheelbarrow, Stapler, Nut-crackers
The order is Fulcrum, Load, Effort but Fulcrum and Effort can swap places
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3rd Class Lever
Examples: Tweezers, Fishing Rod, Barbecue Tongs
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The order is Fulcrum, Effort, Load but Fulcrum and Load can swap places
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1st Class Lever
Examples: See-Saw, Scissors, Pliers, Crowbar
The order is Load, Fulcrum, Effort but Load
and Effort can swap places
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