Measurement Concepts

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Average

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A way to increase the accuracy of a set of measurements by adding together the values of individual measurements and dividing by the number of measurements.

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Density

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A property of matter that describes how much matter is found in a certain volume.

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Formula for Density

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The mass of a type of matter divided by its volume. Usually expressed in grams/milliliters or grams/cubic centimeters.

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Mass

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The quantity of matter present in a substance.

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Measurement

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Determining an amount or a property of matter using a measuring device.

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Measurement Accuracy

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How similar a value is to the correct or expected value.

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Measurement Precision

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How similar the data points are when many measurements of the same property are taken from the same sample substance or object.

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Volume

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The amount of space that a quantity of a substance occupies.