Science project

Page 2

One of these simple machines is the “Lever”, now you might see the picture and wonder what is actually a lever? Well the definition of a lever is any rigid rod or type of plank that pivots, or rotates, about a point. However, Mr. Leroux’s (La-Rue) defines it as anything you can hold in your hand. It can be anything such as a light switch, a quarter, a phone and it also includes objects such as a wheel barrel. The point about which the lever pivots is called a fulcrum. The objects in the pictures are levers because you can hold them in your hand. The marker and the remote would be classified as 3rd class levers because they are close to your hands, the input force would be in the middle and the fulcrum would be at the end. The game case is a lever because you can hold it in your hand.


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