Mass usually refers to the amount of matter in an object, while density is the physical property of matter. The symbol for density is the Greek letter “rho” or “ρ.”
Density is the mass per unit of volume of a substance. The density equation is:
- Density = mass/volume
Rearrange the equation by multiplying both sides times Volume in order to isolate Mass,
- Volume × density = mass
- Volume = mass/density.