# Difference Between Density & Mass ••• Hemera Technologies/Photos.com/Getty Images

Mass and density are two commonly used physical properties of objects in physics that are very similar and share a close mathematical relationship. Mass and density should not be confused with weight.

## Mass

Mass is a measure of how much matter there is within an object, typically given in grams. Mass is not affected by gravity, so a given object would have the same mass on Earth as in outer space.

## Density

Density is the amount of mass in an object per a certain amount of volume. Water has a density of 1 gram per cubic centimeter.

## Formula

The mathematical relationship between mass and density is often given by the formula: Density=Mass/Volume. This can be rewritten Mass=Density x Volume.

## Weight

Weight is the force of the gravity that acts upon an object's mass. In the absence of gravity, objects have no weight.

## Matter States

Matter can come in liquid, solid or gaseous forms. Matter state often has a large impact on density, as gases tend to be far less dense than liquids or solids.

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