Often times we don't even realize that a tool we are using is a machine. Simple machines are those that have few or no moving parts. Because of their commonality, they are prevalent in our daily lives. The video program, Simple Machines, not only explains some basic laws of motion, but presents each of the six simple machines by describing how it works and giving multiple real life examples of its use. If you do believe it's a machine, write what work it helps you do.
Work happens when a force moves or changes the shape of an object.
Name the six simple machines. Explain how a screw is really an adapted incline plane. Give an example of a time when you might use an inclined plane. Give an example of a wheel and axle. Have students choose one new word and one familiar word to make a possible sentence.