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terms and definitions

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Term
Definition
Hypothesis   testable statement  
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Theory   a broad generalization that explains a body of facts or phenomena  
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Derived unit   combinations of Si base units form these  
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Density   the ratio of mass to volume, or mass divided by volume  
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Accuracy   the closeness of measurements to the correct or accepted value of the quantity measured  
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Direct Proportion   when two quantity are equal to the others accepted value  
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Precision   refers to the closeness of a set of measurements of the same quantity made in the same way  
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Model   explains how a phenomena occurs and how data or events are realated  
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SI   the single measurement system that all scientists agreed on is called Le Systeme International d'Unites abbreviated SI  
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quantity   something that has magnitude, size, or amount  
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system   a specific portion of matter given region of space that has been selected for study during the experiment or observation  
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conversion factor   the ratio derived from the equality between two different units that can be used to convert from one unit to the other  
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weight   a measure of the gravitational pull on matter  
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volume   the amount of space occupied by an object  
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