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How to Make a Pulley Work

Pulleys are simple machines that make it easier to lift or move heavy loads from one point to another. Simple pulleys consist of a a circular wheel with a groove. A rope or cable fits within the pulley-wheel's groove and is attached to a load. When you lift an object using a pulley you gain mechanical advantage and displace the load.

Things You'll Need

  • Pulley
  • Load
  • Rope or cable
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Instructions

    • 1

      Attach one end of the rope of your pulley to the object you are moving. Tie the rope firmly so that the object doesn't slip or fall.

    • 2

      Run the free length of rope up and over the wheels of your pulley system. Many pulleys feature a single wheel, but those used to relocate heavy objects may feature several.

    • 3

      Pull on the free end of the rope, moving it through the pulley's wheels. A pulley provides you with leverage, enabling the movement of objects too heavy to otherwise relocate

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