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Main page » Multimedia » Learning Videos » The Way Things Work - Pulleys (VIDEO)

The Way Things Work - Pulleys (VIDEO)
















The Way Things Work - Pulleys


In Pulleys, inhabitants of Mammoth Island try to find the best method to lift their mammoths. A young islander, Olive, decides to use a simple machine called a pulley to get the job done. A pulley is a wheel that carries a rope, chain or cable on its rim and can be used to lift a heavy load. And when multiple pulleys work together, they lessen the effort it takes to do work. So, using a ten-pulley system would require one-tenth of the effort of a single pulley to lift a mammoth!


Grades:  3 to 6



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Tags: pulley, Things, Pulleys, effort, lessen, ten-pulley