Introduction to Density
- Density is defined as mass per unit volume.
- Formula: \rho = \frac{m}{V}, where:
- \rho represents density.
- m represents mass.
- V represents volume.
Units of Density
- The SI unit of density is kilograms per cubic meter (kg/m^3).
- Density may also be given in grams per cubic centimeter (g/cm^3).
Understanding Density vs. Weight
- It's crucial to understand the difference between density and weight.
- Example: Lead is denser than water, but whether a sample of lead is heavier than a sample of water depends on the amount of each substance.
- Density refers to how much mass is packed into a given volume.
Quick Conversion of Density Units
- To convert from grams per cubic centimeter (g/cm^3) to kilograms per cubic meter (kg/m^3), multiply by 1000.
- To convert from kilograms per cubic meter (kg/m^3) to grams per cubic centimeter (g/cm^3), divide by 1000.