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To make a pulley, get a coat hanger. Cut the bottom of the hanger, and insert the open ends into an empty wooden spool. Adjust wire so spool turns easily, and then bend the ends so that the spool won't fall off. Hang rope on the spool. Attach one end of rope to a bucket or can. To use, hang the pulley and pull on the end with no bucket or can.
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Which simple machine would make it easiest for Cathy to get her grand piano up to her new apartment?
A pulley
Who discovered pulley?
The simple pulley was invented in ancient times by an unknown person. The compound pulley was invented by Archimedes.
What is a simple machine made of a wheel and a cord called?
That would most likely be a pulley. A pulley is essentially a wheel on an axle that usually has a groove in the middle of its circumference that holds a rope, cable, belt, or chain. Pulleys are used to transmit motion rotationally and apply force in the direction of said motion. Two or more pulleys makes a tackle. Hope this is what you were looking for.
A bicycle chain is an example of what simple machine?
pulley
Which is the simple machine that provides the mechanical advantage of 1 the screw second class lever single fixed pulley or single movable pulley?
Single Pulley
