This exhibit demonstrates how pulleys make lifting of load easier.
Visitors use single and multiple pulleys and will feel the difference in force they have to apply to lift a certain weight. Using pulleys makes the lifting easier. This happens because the weight is distributed over more than one line. Every rope supporting the weight takes an equal piece of the load. The weight is carried not just by the rope you pull on, but by the others as well. This weight is divided over the overall weight between the ropes.
- Lift the block with the single pulley.
- Lift the block with the multiple pulley.
- Feel the difference.