Quick Answer: The Multiple Pulley is a physics apparatus with several grooved pulley wheels for showing how a pulley system reduces the effort needed to lift a load. A cord passes through the wheel grooves, and a hook takes the load or weight hanger.
Last updated: October 2026
Key Features
Several grooved pulley wheels for the cord to run through
Hook for attaching a load or weight hanger
Mounts on a laboratory stand or other support
Used for fixed, movable and compound pulley demonstrations
About This Product
Students lift a load with the cord, measure the effort with a spring balance and compare it with the load to find the mechanical advantage. Repeating the test with different loads and pulley combinations shows how adding pulleys lowers the effort and how friction affects efficiency, linking the practical to cranes and other lifting machines.
Frequently Asked Questions
How is mechanical advantage measured with the Multiple Pulley?
The effort needed to lift a known load is read with a spring balance, and the load is divided by the effort.
