A class 1 lever is a type of simple machine consisting of a rigid object that pivots on a fixed point called the fulcrum. The effort force is applied on one side of the fulcrum and the load force is located on the other side. In a class 1 lever, the fulcrum is located between the effort force and the load force.
An example of a class 1 lever is a seesaw or a teeter-totter that children play on. The fulcrum is the pivot point on which the seesaw balances. The effort force is applied by one child pushing down on one end, while the load force is the weight of the child on the other end. The seesaw is a class 1 lever because the fulcrum is located between the effort force and the load force.
Describe a class 1 lever and give one example of a class 1 lever.
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