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This Concept Map, created with IHMC CmapTools, has information related to: Work & Machines Group 7, Lever a supports Fulcrum, Machine examples Lever, Machine examples Screw, Effort Arm is the what the person or machine applies a force on, Resistance Force is the force which an effort force must overcome in order to do work on an object, Machine examples Inclined Plane, Machine examples Wedge, Efficiency definition how much of the energy you put in actually comes as useful work, Compound Machines Definition uses more then one simple machine, Machine examples Wheel and Axie, Joule can also be Watt, Machine examples Inclined Plane, work is measured in N*M, Machine examples Pulley, work is when force is applied and moves a distance, Resistance Arm definition distance between axis and point of resistance application, Mechanical Advantage is the number of times that the machine multiplies force, Kilowatt-hour is a unit of energy equal to the work done by a power of 1000 watts operating for one hour., Power is the rate at which work is done, horsepower Definition based on the amount of work the average horse can do.