wheel and axle
wheel and axle
That isn't a simple machine, it is a complex machine, made up of other simple machines.
a screw
Lever.
all of them
There are four simple machines used to make the compound machine known as the lawn mower. These simple machines are the wheel and axle, the screw, the lever, and the wedge.
A lever.
pulley and rope
lever and pulley
A compound machine.
Rims and tires
At least 300