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Also known as volumetric mass density, volumic mass, density

Density (volumetric mass density or specific mass) is the ratio of a substance's mass to its volume. The symbol most often used for density is ρ (the lower case Greek letter rho), although the Latin letter D (or d) can also be used: \rho = \frac{m}{V}, where ρ is the density, m is the mass, and V is the volume. In some cases (for instance, in the United States oil and gas industry), density is loosely defined as its weight per unit volume, although this is scientifically inaccurate this quantity is more specifically called specific weight.

AI overview

Mass density measures how much mass is packed into a given volume of a substance, calculated by dividing the mass by the volume. It's useful for understanding and comparing materials—for example, why lead feels heavier than wood of the same size, or for practical applications like determining whether something will float or sink in water.

AI-generated from the Wikipedia summary — may contain errors.

Key facts

Physical quantity.name: Density
Physical quantity.image: Density column.JPG
Physical quantity.image_size: 100px
Physical quantity.caption: A test tube holding four non-miscible colored liquids with different densities
Physical quantity.unit: kg/m3
Physical quantity.symbols: ρ, D, d
Physical quantity.dimension: wikidata
Physical quantity.extensive: No
Physical quantity.intensive: Yes
Physical quantity.conserved: No
Physical quantity.derivations: \rho = \frac{m}{V}
Physical quantity.otherunits: g/cm3