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picture number 3
Picture number three showed people working with the lever. One person was standing on one end and the other person was pushing down, trying to lift the other person up. It was harder to lift the person when the fulcrum (the part in the middle) was closer to the person trying to lift the other picture. When the fulcrum was closer to the person being lifted, it was easier to lift them.
This simple machine is called a lever. A lever is a board with a fulcrum ( or point) in the middle. This machine works better when the fulcrum is closer to the object that is being lifted.
Article posted April 30, 2010 at 10:50 AM •
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