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en.wikipedia.org/wiki/Density

The density, or more precisely, the volumetric mass density, of a substance is its mass per unit volume. The symbol most often used for density is ρ (the lower case Greek letter rho), although the Latin letter D can also be used. Mathematically, density is defined as mass divided by volume: =

www.reference.com/science/unit-density-84b1abe223002fd3

Density it the relationship between the volume and mass of a substance. Specifically, it is found by dividing the mass by the volume. The unit of density depends upon which units are used to measure mass and volume.

www.quora.com/What-is-the-SI-unit-of-density

All SI units follow the rule that they have to derive from the SI units of the corresponding magnitudes. Therefore, since Density = Mass / Volume, the unit of density is the unit of mass(kg) per unit of volume(m³). Still, for convenience, we often...

www.thoughtco.com/what-is-density-definition-and-calculation-2698950

A material's density is defined as its mass per unit volume. Put another way, density is the ratio between mass and volume or mass per unit volume. It is a measure of how much stuff an object has in a unit volume (cubic meter or cubic centimeter). Density is essentially a measurement of how tightly matter is crammed together.

courses.lumenlearning.com/boundless-chemistry/chapter/units-of-measurement

The unit for volume is a unit derived from the SI unit of length and is not a fundamental SI measurement. If two water samples have different volumes, they still share a common measurement: the density. Density is another measurement derived from SI basic units. The density of a material is defined as its mass per unit volume.

blog.prepscholar.com/what-is-the-density-of-water

It’s no coincidence that water has a density of 1. Density is mass divided by volume (ρ=m/v), and water was used as the basis for establishing the metric unit of mass, which means a cubic centimeter (1cm 3) of water weighs 1g.. So, 1g/1cm 3 = 1 g/cm 3, giving water it’s easy-to-remember density. However, water’s exact density depends on both the air pressure and the temperature of the area.

Density. The notion of unit volume can be used to talk about the density of an object. The definition of density is as follows: density = mass/unit volume. It has units of "mass" divided by units of "length 3", so it is usually given as kg/m 3 or g/cm 3. Notice how the idea of unit volume enter here.

www.unit-conversion.info/density.html

Density - is the ratio of the mass of a substance to its volume. The standard SI unit for density is the kg/m³ (kilogram per cubic metre), the symbol is ρ.

www.britannica.com/science/density

Density, mass of a unit volume of a material substance. The formula for density is d = M/V, where d is density, M is mass, and V is volume. Density is commonly expressed in units of grams per cubic centimetre. For example, the density of water is 1 gram per cubic centimetre, and Earth’s density is 5.51 grams per cubic centimetre. Density can also be expressed as kilograms per cubic metre (in ...