“After studying out of a book all day,” Skylar says, “sometimes I feel a little lost in how what I just learned applies to the real world. Hopefully, the students find this kart new and exciting and ...

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.

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.