Understanding Simple Machines
A lesson on the names and functions of the six simple machines.
• To introduce students to six simple machines as recognized by physicists.
To explain functions of each simple machine.
To provide recognizable and easy to understand examples of simple machines.
To present exercises that test students? understanding of the simple machines and their functions.
What is a machine? At first, you may think of something very large, like an airplane. The word machine also makes us think of very complex structures, such as computers. You may be surprised to find out that machines can also be very simple. A machine can be defined as any tool that makes work easier. In fact, something as small and easy to use as a hammer is a machine. Even your elbow is a kind of machine!