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ch. 11 les. 3 & 4

Work & Energy and Simple Machines

answerquestion
work the use of force to move an object a certain distance of change an object
energy the ability to preform work or change an object
potential energy energy stored in the position or the structure of an object
kinetic energy the energy of a moving object
law of conservation of energy the theory that states that energy may change form, but it cannot be created or deystryed
simple machines a machine that changes the direction , the distance, or the strength of one force
effort the force applied to a machine
load the object being moved by a machine
fulcrum the pivot point of a lever
compound machines a combination of two or more simple machines
efficiency the measure of how much useful work a machine puts out compared to the amount of work put into it
Created by: gtgirl
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