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### 16 Cards in this Set

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 the study of matter and enrgy PHYSICS a systematic way to oserve, experiment, and analyze the world SCIENTIFIC METHOD the valid digits in a measurement SCIENTIFIC DIGITS describes the relationship between two variables in which an increase in one variable results in a decrease of another variable INVERSE RELATIONSHIP the line drawn as close as possible to all the data points on the graph LINE OF BEST FIT an educated guess about how variables are related HYPOTHESIS the factor that is changed or manipulated during an experiment INDEPENDANT VARIABLE description of a rule of nature SCIENTIFIC LAW a comparison between an unknown quanity and a standard MEASUREMENT a straight line on a graph that shows a linear relationship between the two variables LINEAR RELATIONSHIP an explanation supported by experimental results SCIENTIFIC THEORY describes how well the results of a measurement agree with the real value. ACCURACY the factor that depends on the independant variable DEPENDANT VARIABLE the method of treating units as algabreic quantities, which can be cancelled DIMENSIONAL ANALYSIS exists when one variable depends on the suqare of another QUADRATIC RELATIONSHIP the degree of exactness of a measurement PRECISION