Final answer:
The bulk, density, and weight of a three-dimensional form are described by its mass, which is related to the object's volume and density. These physical properties are important in architecture and other fields where material stability and gravity resistance are crucial.
Step-by-step explanation:
The bulk, density, and weight of a three-dimensional form is described as its mass. Mass refers to the amount of material within an object and contributes to the object’s perceived weight. The concept of mass is intricately linked with volume and density. Volume measures the physical space occupied by an object and is expressed in cubic units. Density, on the other hand, is the ratio of an object's mass to its volume, and it provides an insight into how closely packed the material within an object is. Understanding these properties is essential in fields such as architecture, where builders must consider the resistance of gravity and the use of materials to create stable structures.