What is a wheel and axle?

A wheel and axle is a lever that spins around instead of going up and down.

The wheel is a round disc attached to an axle.

An axle is a rod that runs through the center of the wheel and supports it.

To use a wheel and axle, you provide effort by turning either the wheel or the axle.

Depending on how they are designed, wheels and axles can change the amount of force needed to do work or they increase the distance covered.

Real life examples of wheel and axles.