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Movable pulley – Simple machines – Physics

By |2018-05-31T11:49:15+00:00August 17th, 2017|Physics|

Bike hoist pulleys A movable pulley is a way to use a pulley to make it easier to move heavy things - to get a mechanical advantage. In the picture, someone is trying to pull their bike up to the ceiling so it will be out of the way. They've used two fixed pulleys, attached to [...]

Pulley – Simple machines – Physics

By |2018-05-31T11:49:15+00:00August 17th, 2017|Physics|

Clothesline pulley A pulley is really a kind of wheel, just as a screw is a kind of inclined plane. But pulleys are so important that people give them their own category. A pulley is a wheel with two raised edges. The raised edges are so that a rope or a string will run along the wheel [...]