Description
A simple machine called a pulley helps a person raise and lower the flag. A pulley is a wheel with a groove in it, and a rope in the groove. … Examples of Compound Pulleys: A compound pulley is a combination of the simple and moveable pulley.
A pulley is a rope wrapped around a wheel. It changes the direction of force. A basic compound pulley has a rope attached to a stationary point looped around one wheel and then around a second wheel. Pulling on the rope pulls the two wheels closer together.
