What are the Three Types of Levers?

The three types of levers are first, second and third class levers. The difference between them is where the load, pivot and force are located. If the load is at one end, the force at the other end and the pivot in the middle, such as a seesaw, it is a first class lever. If the pivot is one end, the force at the other end, and the load in the middle, such as a wheelbarrow, it is second class lever. If the pivot is at one end, the load at the other end, and the fulcrum in the middle, such as a baseball bat, it is a class three lever.