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14.3 Chemistry

Vocabulary Words

QuestionAnswer
mechanical advantage the number of times that the machine increases an input force
actual mechanical advantage the ratio of the output force to the input force (Actual mechanical advantage=Output force/Input force)
ideal mechanical advantage the mechanical advantage in the absence of friction (Ideal mechanical advantage=Input distance/Output distance)
efficiency the percentage of the work input that becomes work output (Efficiency=Work output/Work input X 100%)
Created by: MarieElyn