a pulley
compound machine
"compound machine" or "compound"
What is made up of two or more simple machines?There are only six different types of simple machines. The six simple machines are as follows: a pulley, a wheel and axle, An inclined plane, a lever, a...
A compound machine.
Compound machines are made up of 2 or more simple machines. Take a bike for example it has a: Gear Pulley Wheel and Axel