Final answer:
Volume, when multiplied by density, equals mass. The formula for calculating density is ρ = m/V, which confirms that mass is the product of density and volume.
Step-by-step explanation:
When multiplied by density, the term that equals mass is volume. This relationship is known as the mass density relationship, where mass is equal to the product of density and volume, represented algebraically as m = ρV, where m stands for mass, ρ (rho) represents density, and V denotes volume. Volume is a measurement of the amount of space an object occupies and is typically measured in cubic units.
The formula to calculate density is ρ = m/V, which reveals why volume, when multiplied by density, gives us the mass. Volume, therefore, is the key factor that, together with density, determines the mass of an object.