wheel and axle

Did you know  that a wheel and axle is a simple machine .

A wheel goes aroud and axle rotates just like a wheel.

axle diagram:

 

 

 

wheel diagram:

 

 

 

 

A car engine moves the axle then an axle moves a wheel and the wheel rotates around to move a move a car.

wheels andaxle s can be in a car bus and all typs of transport incliding bikes.