A pulley is a wheel on an axle or shaft that is designed to support movement and change of direction of a taut cable. The supporting shells are called blocks.
Learn what a pulley is - a simple machine that reduces the time and energy taken to lift heavy objects through this animated learning video.
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 ...
The Pulley Have you seen your school flag being raised before? This is possible with a simple pulley. When you pull down on the rope, the pulley turns and the ...
A pulley is a basic device or machine made of a wheel with a rim that a cord or rope fits around. The wheel and axle of a pulley make it easier to lift heavy objects ...
May 18, 2017 ... An easy-to-follow explanation of how pulley wheels help you lift more by multiplying your lifting force.
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 own category.
One answer is to use a pulley. A pulley is a simple machine. In this original KET video, children learn about the workings of this basic mechanism. This video is ...