Significant Figures, Known digits plus an estimated digit in a measured quantity., Precision, How close measurements are to one another., Accuracy, How close a measurement is to a known standard or expected value., Error, The difference between the experimental value and accepted value in a measurement., Percent error, Formula used to determine how far a measurement or piece of data differs from an expected value., Base Unit, a defined unit in a system of measurement like meter for length which is defined as the distance light travels in 1/299792458 s., Derived unit, is unit of measurement comprised of base units. Like m3 is a volume unit comprise of the m base unit., Conversion factor, A ratio of equivalent values having different units like 1 dozen / 12.

Chapter Two - Measurement

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