Introduction: This lesson provides students with a review of simple machines and their tasks. It works best in combination with your lesson on simple machines, or as a review/additional activity.

The simple machines that changed the world throughout history. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Throughout history, humans have ...

When you push or pull with a simple machine, you are applying a force and doing work. And, if you get more force out of a machine than you put into it, then that machine has a mechanical advantage.