+A **physical quantity** is a property of a phenomenon, body, or substance that can be expressed as a [Magnitude](/wiki/magnitude) and a [Unit](/wiki/unit). It allows us to quantify the world around us, from the smallest particles to the vastness of space.
+## See also
+- [Measurement](/wiki/measurement)
+- [Dimension](/wiki/dimension)
+- [Scalar](/wiki/scalar)
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