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Levers also take form in a variety of hand tools such as scissors, pliers, claw hammers and wheelbarrows. Many of our basic tools use levers, including scissors (2 class 1 levers), pliers (2 class 1 levers), hammer claws (a single class 2 lever), nut crackers (2 class 2 levers), and tongs (2 class 3 levers). Levers can be used as links to connect the various moving parts of a machine, so, for instance, one part of a machine can move another part by pulling a link that can pivot at an intermediate point. A lever is a simple machine that makes work easier for use; it involves moving a load around a pivot using a force.

The most common and popular lever can be found in many playgrounds: a see-saw or teeter-totter.

They are found everywhere and it is one of the most useful simple machines.

A Type 1 Lever. A lever could be something as simple as a wooden board with a ridge that freely rotates or moves on a pivot. A lever is one of the six simple machines.

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