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Levers

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by

Emily Adkins

on 3 April 2013

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Transcript of Levers

Third Class Lever Third class levers multiply distance rather than force. As a result, they have a mechanical advantage of less than one. The human body contains many third class levers First Class Lever A first class lever has fulcrum located between the points of application of the input and output forces All levers have a rigid arm that turns around a point called the fulcrum Simple Lever Pumping Iron Spongebob pumping iron is an example of a third class lever The Hammer A Hammer pulling a nail is an example of a first class lever. The Wheelbarrow The Wheelbarrow moving a load is an example of a second class lever. Levers Zach Lawrence
Mac Stewart
Emily Adkins
Antonio Herrera Fulcrum Second Class Lever In a second class lever, the fulcrum is at one end of the arm, and the input force is applied to the other end. The wheel of a wheelbarrow is a fulcrum Input Force Output Force The Lever can be found in these everyday objects
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