Mass,Density and Volume by Farva

How could you distinguish a of feathers versus a if you could not see them?

One metric ton of either feathers or bricks will have an identical mass of 1,000 kilograms (one metric ton). However, a metric ton of feathers will occupy a volume of almost 400 million cm(about the size of four tractor trailer trucks), while a metric ton of bricks will occupy only one-half million cm (about the size of a large-screen TV). The bricks are denser than the feathers because their mass is packed into a smaller volume. This relationship between the mass and volume of a substance is what defines the of density:Density is an intensive property of matter that is defined as the ratio of an object's mass to its volume. Mass is the amount of matter contained in an object and is commonly measured in units of grams (g). Volume is the amount of space taken up by a quantity of matter and is commonly expressed in cubic centimeters (cm) or in milliliters (ml) (1cm = 1 ml). Therefore, common units used to express density are grams per milliliters (g/ml) and grams per cubic centimeter (g/cm).

Let's look at an example. A typical brick has a mass of 2,268 g and occupies a volume of 1,230 cm. The [http:// density] of the brick is therefore:

Density is an easy concept to confuse. For example, many items that we commonly think of as "light" or "heavy" do not have different masses, but they do have different densities.