Statics › Section F · Equilibrium of structures › Topic F.8
Levers, pulleys, and simple machines
Six simple machines, the lever, the wheel and axle, the pulley, the inclined plane, the wedge and the screw, sit inside almost every mechanical device. Each one trades distance for force, and statics gives the exact exchange rate.
In this topic
- Six simple machines
- The lever and its law
- Three classes of lever
- Worked example: a crowbar
- Worked example: the forearm
- Wheel and axle
- Pulleys
- Worked example: lifting an engine
- Inclined planes, wedges and screws
- Common mistakes to avoid
- Key takeaways
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