Final answer:
The term for the amount of material used to fill a mold during an injection-molding process is 'Shot size'. (option C)
Step-by-step explanation:
The amount of material used to fill a mold during an injection-molding process is called Shot size. It is the total weight or volume of material injected to form a single part, and it determines the quality and consistency of the final product. This term refers to the total weight or volume of the material that is injected into a mold to form a single part. Critical to the process, the shot size must be carefully calculated and controlled to ensure the quality and consistency of the molded parts. The shot size is influenced by the cavity size and the shape of the mold.
Other options such as viscosity, flow rate, and cavity pressure play roles in the dynamics of the injection molding process, but they do not define the amount of material used to fill the mold.