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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.

lasp.colorado.edu/~bagenal/MATH/supplement/density.html

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 ...

www.answers.com/Q/What_is_the_unit_for_density

'Density' is not a unit at all. Density is how tightly atoms in an object are packed together. Therefore, density isn't a new unit, or a unit at all for that matter. The SI units of density are kg ...