Unit I: Matter & Measurement

Front

SI units

Back

Système International d’Unités

Front

conversion factor

Back

A ratio used to convert from one unit to another.

Front

equivalence statement

Back

A statement that expresses the equality of two different units.

Front

derived unit

Back

A unit that is a combination of base units.

Front

factor-label method

Back

Also called dimensional analysis, a method to convert units using conversion factors.

Front

accuracy

Back

The closeness of a measurement to the true value.

Front

precision

Back

The repeatability of measurements, or how close the measurements are to each other.

Front

significant figures

Back

The digits in a measurement that are known with certainty plus one estimated digit.

Front

accepted value

Back

The true or correct value based on general agreement.

Front

experimental value

Back

The value measured during an experiment.