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First Order Lever

First Order Lever

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First order lever

Description: The lever is a simple machine consisting of a bar supported at some stationary point along its length and used to overcome resistance at a second point by application of force at a third point. The stationary point of a lever is known as its fulcrum. The principle of lever can be explained as when two equal forces acting in opposite directions, i.e., clockwise and anticlockwise, and applied to a uniform lever at equal distances from the fulcrum counteract each other and established a state of equilibrium, or balance, in the lever. First order levers have the turning point (fulcrum) between the load and the effort. The mechanical advantage gained through a first order lever is illustrated with varying fulcrum distance from weight.

Recommended Class: 4th, 5th, 6th