Wheel and Axle ExamplesHere are some examples of the wheel and axle around the house: a doorknob, a gear, even your bike chain!
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The Simple PulleyThe simple pulley only redirects the force required to move a load. The force and load are equal.
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The Compound PulleyBecause four lines come up from the load in this compound pulley arrangement, the tension in the wire is only one fourth the weight of the load.
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