Movement analysis and levers
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4 Terms
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Lever
a rigid bar that rotates about an axis of rotation or a fulcrum (joint)
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Level system
a machine consisting of a rigid bone that is capable of rotating about an axis, it can convert applied force into torque
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3 basic components of a lever
effort (muscle force), resistance (weight or load), and fulcrum (joint/axis which lever rotates)
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Classification of levers
arrangement of applied force, fulcrum, and resistance determine if 1st, 2nd, or 3rd class; class determines the levers strengths and weaknesses
Note 
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