Have you ever heard about levers? Well you probably have seen them in minecraft, or a cool movie, but there is a lot more to levers you see..
A lap top is a lever, scissors are, seesaws are, wheelbarrows are, crowbars are, even your arm is a lever!
Let me tell you about the 3 classes of levers.
Class 1 Lever: A class 1 lever is a see saw, a crow bar, scissors, and hears why. The three points in a lever are the fulcrum, the load, and the effort. (FLE). In a seesaw, the thingy in the middle is the fulcrum. However, the load and the effort depend on weight, or who is higher up. To say, if I were 100 pounds, and my friend was 75 pounds, I would be doing most of the effort because I am heavier.
Class 2 Lever: A class 2 lever is a wheel barrow, and a nutcracker, and more. In this type of lever, the fulcrum is the wheel of the wheelbarrow (at the end) and the load is the bucket of contents, and the effort is where your arms are when you push it.
Class 3 Lever: A class 3 lever is tweezers, your arm, glasses, lap top, and more. For this lever I am going to be using tweezers as an example. In tweezers the fulcrum is the end of the tweezers, the effort is in the middle and the load is at the end.
I hope you liked my post about levers-!