Driving Questions. How can a lever make work easier?What happens to the effort needed to lift a load as the position where the effort is applied changes?What happens to the effort needed to lift a load as the position of the load changes?How many ways can you arrange the fulcrum, load, and effort in a lever system?What classes of levers can we find in the real world and how do people use them to make work easier?.

Levers

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