Lever demonstration

Lever demonstration

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This image is part of the sequence Science and technology: Lever demonstration

Credit: GIPHOTOSTOCK/SCIENCE PHOTO LIBRARY

Caption: Lever demonstration. A Class 2 lever is demonstrated with a wooden ruler, a 50 g weight and a spring scale. As the distance between the pivot point and the weight (lever arm) is decreased, a smaller force (as measured by the scale) is required to balance the mechanical system. In this photo the scale reads 36 g.

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Keywords: archimedes, balance, balanced, demonstration, education, educational, equilibrium, experiment, fulcrum, gravitation, gravity, law, lever, mass, mechanical, mechanics, moment, moment of force, physical, physics, pivot, pivot point, ruler, scale, seamless, sequence, simple machine, still life, torque, weigh, weight

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