Watch the Video about Pulleys!
A pulley is a simple machine. It uses a wheel and a rope (or chain) to help lift or move things.
Pulleys make lifting heavy objects easier. They can change the direction of your pull and sometimes let you use less force.
The wheel stays in one spot.
It changes the direction of your pull (you pull down, the object goes up).
The wheel moves with the load.
It makes the object feel lighter, so it’s easier to lift.
Example: a crane at a construction site.
Real-Life Pulley Examples
Exercise machines at the gym