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PULLEYS - Coggle Diagram
PULLEYS
Fixed pulleys
It is a wheel that has a groove for a rope, chain or belt to go around it
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It reduces the load, R, when the effort, F, is applied
A fixed pulley is belenced when the effort, F, is equal to the load, R: F = R
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Uses: wells, gym equipment
Moveable pulleys
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The effort needed to move a load with a moveable pulley is half of the effort needed with a fixed pulley
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Compound pulleys
This is a set of fixed and moveable pulleys, often called a block and tackle
If we use more pulleys it often becomes more complex, but less effort is needed to move the load
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Uses: in passesnger lifts, good lifts, cranes
A pulley is a linear motion mechanism used to raise and lower loads easily because we use our weight to counteract them
