Glossary term: Density
Description: Density is a physical characteristic of a substance or object that expresses the relationship of its volume to its mass. The higher the density, the greater the mass per unit volume. Therefore, it is the mass of a unit volume of matter. The density of an object is its total mass divided by its total volume. Its unit is kilograms per cubic meter (kg/m³). Large variations in density are found in the Universe, ranging from about 10⁻²⁰ kg/m³ for interstellar gas to more than 10¹⁷ kg/m³ for neutron stars. The average density of matter in the Universe is of the order of 10⁻²⁷ kg/m³.Related Terms:
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Term and definition status: This term and its definition is still awaiting approval
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