(diff) ←Older revision | view current revision (diff) | Newer revision→ (diff)

# Definition

The **density** of an object is its mass divided by its volume.

This idea is easily extended to apply to materials in general. The density of a material is the amount of mass per unit volume of the material.

# Examples

- Water has a density of 1000 kilogram per cubic metre.
- Air at normal pressure has a density close to 1 kilogram per cubic metre.
- Some members of sciforums have very high densities.