A lever
wheel and axle
Bicycle
This is called a pulley.
compound machine
a pulley is called a moving simple machine because it moves
The force applied to a simple machine is called effort/input force.
It's called a compound machine.
a thumb tack is a simple machine called the lever
A compound machine.
simple machine such as pulleys and levers make work easier
When simple machines work together, that forms a compound machine.
A lever
An airplane is not a simple machine. A lever is a simple machine. A wheel is a simple machine. Any machine that can be described by a mathematical formula is a simple machine.
They are called compound machines. :)Hope that helps
doorknob is a simple machine which makes something work. It is called lever.
a plow