There are six simple machines. They make work easier.
A lever is a bar. It turns around a pivot point.
The pivot point is called the fulcrum. A seesaw is a lever.
Scissors are an example of a lever.
A ramp is an inclined plane. So are stairs.
A wedge pushes things apart or cuts them.
A doorstop is a wedge.
A pulley is a wheel that a rope goes over.
A flagpole uses a pulley to raise the flag.
A bicycle is an example of a wheel and axle.
Words to know
- lever: a turning bar
- fulcrum: the pivot point
- wedge: pushes things apart
- pulley: wheel with rope
