A pulley is a wheel on an axle or shaft that is designed to support movement and
change of direction of a taut cable or belt along its circumference. Pulleys are ...
Learn what a pulley is - a simple machine that reduces the time and energy taken
to lift heavy objects through this animated learning video.
www.ask.com/youtube?q=What Is a Pulley?&v=LiBcur1aqcg
Feb 14, 2012 ... ... presents: What is a Pulley? Pulley is a simple machine and comprises of a
wheel on a fixed axle, with a groove along the edges to guide a ...
Pulley. What is it? A Pulley is a simple machine made up of a wheel and a rope.
The rope fits into the wheel and one end of the rope is attatched to the load.
Apr 22, 2016 ... April 2016 - 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 ...
Nov 26, 2015 ... An easy-to-follow explanation of how pulley wheels help you lift more by
multiplying your lifting force.
pulley simple machine consisting of a wheel over which a rope, belt, chain, or
cable runs. A grooved pulley wheel like that used for ropes is...
A pulley is one of the original simple machines. The pulley was possibly created
by Archimedes in B.C. times. Its original use was to lift buckets of water.
Pulley definition, a wheel, with a grooved rim for carrying a line, that turns in a
frame or block and serves to change the direction of or to transmit force, as when
1. Pulley - How Stuff Works. A pulley is a simple machine that uses grooved
wheels and a rope to raise, lower or move a load. old wooden pulley. Pulleys. 2.