What term describes the mass in a given volume?

The term that describes the mass in a given volume is density. Density is defined as the amount of mass contained within a specific unit of volume. It is commonly expressed in units such as grams per cubic centimeter (g/cm³) or kilograms per cubic meter (kg/m³). Understanding density is crucial in various fields, including physics, engineering, and material science, as it helps in determining how substances will behave and interact in different environments.

Weight refers to the gravitational force acting on an object and is dependent on both its mass and the gravitational field it is in. Pressure relates to the force applied per unit area and is not synonymous with mass or volume. Volume refers to the space that an object occupies but does not directly relate to the mass aspect without referring to density. Thus, density distinctly captures the relationship between mass and volume, making it the appropriate term in this context.