all of which follow the law of the lever. Class 1 is perhaps the most familiar. Examples of that are a seesaw, a crowbar as well as any time you’ve picked up a stick and placed it on a handy ...

2. Second class lever – the load is in the middle between the fulcrum and the effort. This type of lever is found in the ankle area. When standing on tiptoe, the ball of the foot acts as the ...

First order levers close first order leverA bar featuring a pivot that is in the middle; the load is at one end and the effort is at the opposite end to make pushing or pulling easier. (Class 1 ...