There are three different types of levers. They are chosen for their ability to produce the most mechanical advantage for a particular task.

“Introduction to Mechanical Systems” provides a foundational overview of mechanical systems - simple machines, such as the lever, incline planed, and wheel, are the building blocks of even the most ...

Background Seesaws and scissors belong to a certain class of levers, called class 1. Class 1 levers usually have a beam that is rigid, long and thin, like a ruler.