kg/m 3 or g/cm 3
Density is a physical property of matter. Most commonly density referes either to the mass per unit volume (mass density) or the number of objects (e.g., atoms, molecules) per unit volume (number density). We will focus out attention on mass 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. Density is a physical characteristic, and is a measure of mass per unit of volume of a material or substance. Density is mass divided by volume. It is a measurement of the amount of matter in a given volume of something. ρ is the object's density (measured in kilograms per cubic meter). m is the object's total mass (measured in kilograms). V is the object's total volume (measured in cubic meters). Under specified conditions of temperature and pressure, density of a fluid is defined as described above. The average density of an object equals its total mass divided by its total volume. A denser object (such as iron) will have less volume than an equal mass of some less dense substance (such as water). The SI unit of density is the kilogram per cubic meter (kg·m-3). where. Density is described by mass per unit volume. The equation for density is ρ = m/v where: ρ = density m = mass v = volume The SI unit is kg/m3 (this is widely used) or g/cm … 3 The imperial (U.S.) unit is lb/ft3 or slugs/ft3 Some useful conversions: 1000 kg/m3 = 1 g/cm3 = 1000 g/L = 62.4 lb/ft3. An introduction to density. Density often has units of grams per cubic centimeter (g/cm 3). Remember, grams is a mass and cubic centimeters is a volume (the same volume as 1 milliliter). A box with more particles in it will be more dense than the same box with fewer particles Show credits Hide from edinfomrmatics.
http://www.iun.edu/~cpanhd/C101webnotes/matter-and-energy/density.html http://lasp.colorado.edu/~bagenal/MATH/supplement/density.html http://www.answers.com/Q/What_is_density http://units.wikia.com/wiki/Density http://units.wikia.com/wiki/Density http://www.answers.com/Q/What_is_the_unit_for_density http://serc.carleton.edu/mathyouneed/density/index.html
what is unit for density