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Chapter 2 Vocabulary: Scientific Measurement

Accuracy The closeness of a measurement to the true value of what is being measured.
Accepted Value A quantity used by general agreement of the scientific community.
Density The ratio of the mass of an object to its volume.
Experimental Value The quantitative result of an experimental measurement.
Percent Error |accepted value - experimental value| / accepted value x 100
Precision The reproducibility, under the same conditions, of a measurement.
Qualitative Measurement A measurement which gives descriptive, nonnumeric results.
Quantitative Measurement A measurement which gives definite, usually numeric results.
Scientific Notation Expression of numbers in the form N x 10^n where N is equal to or greater than 1 and less than 10 and n is an integer.
Significant Figures All the digits that can be known precisely in a measurement, plus a last estimated digit.
Created by: KellyBeck