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.
What are the units of density?
What is density? 1 The density of an object or substance is its mass divided by its volume: Density = Mass ÷ Volume. 2 The units of density depend on the units used for mass and volume, but are usually: g/cm³ (if mass is measured in g and… 3 The more dense a substance is, the heavier it feels for its size.
What does density mean in science?
Science definitions for density. density. A measure of the quantity of some physical property (usually mass) per unit length, area, or volume (usually volume). Mass density is a measure of the mass of a substance per unit volume.
What is the density of an object?
The density of an object or substance is its mass divided by its volume: Density = Mass ÷ Volume. The units of density depend on the units used for mass and volume, but are usually: g/cm³.
What is the difference between density and volume?
Density offers a convenient means of obtaining the mass of a body from its volume or vice versa; the mass is equal to the volume multiplied by the density (M = Vd), while the volume is equal to the mass divided by the density (V = M / d).