Which term describes an enlarged or reduced representation of an object typically intended for study?

A scale model is defined as a representation of an object that is made smaller or larger than the actual object, typically in a proportional way. This term is used specifically to indicate that the model maintains the same proportions and relationships as the original object, allowing for accurate study and analysis of its dimensions and details. Scale models are widely used in various fields, including architecture, engineering, and design, for visualizing and understanding complex structures or products before they are built or manufactured.

In contrast, a mock-up usually refers to a full-sized, detailed, and often non-functional representation of an object used mainly for demonstration or presentation purposes, rather than for precise analysis. A model, while it can be a general term for any three-dimensional representation, does not specifically imply a proportional representation. A prototype is an early sample or model of a product used to test and validate designs, which may not adhere to scale or proportions as accurately as a scale model.