Simple machine

class of things

A class of basic mechanisms: lever, wheel and axle, pulley, inclined plane, wedge, screw.

What it is a kind of

• Wedge — includes. A wedge is a simple machine.
• Lever — includes. A lever is a simple machine.
• Screw — includes. A screw is a simple machine.
• Inclined plane — includes. An inclined plane is a simple machine.
• Pulley — includes. A pulley is a simple machine.
• Archimedes’ screw — includes. A classic example of using the screw.
• Machine — is a kind of. Simple machines are the basis of machines.

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