* Density is mass per unit volume: Density (ρ) is calculated as:
ρ = mass (m) / volume (V)
* A ruler measures length, width, and height: A ruler provides you with the dimensions of the solid, allowing you to calculate its volume (V = length x width x height).
* You need mass to find density: A ruler cannot determine the mass of the solid. To find the density, you need to know the mass as well as the volume.
To determine the density, you need additional tools:
* Scale or balance: This is used to measure the mass of the rectangular solid.
Once you have both the mass and the volume, you can calculate the density using the formula above.
