What formula is used to calculate the density of a substance?

The formula used to calculate the density of a substance is defined as the mass of the substance divided by its volume. This relationship indicates how much mass is contained in a given volume of a substance, providing a measure of how tightly matter is packed together.

Understanding this concept is essential in various applications within aviation maintenance, where density plays a crucial role in determining weight and balance calculations, fuel efficiency, and material properties. By using the density formula, you can easily assess how different materials will behave under varying conditions, which is vital for maintaining aircraft safety and performance.

In contrast, the other options presented do not accurately reflect the relationship between mass and volume as it pertains to density. The inverse relationship noted in some options would not yield a meaningful measurement relevant to physical properties in aviation or other scientific contexts.