Final answer:
A physical model is a great visual representation for showing how something works.
Step-by-step explanation:
A great visual representation for showing how something works is a physical model. Just like an architect creates a model to visualize how a building will look after construction, you can create a model to demonstrate how a process or mechanism works. Companies also use models to showcase their new products. These models may not be the final version but can still give a clear idea of how the product functions.