Question

question 1 of 10 which of the following phrases best describes a physical model? a. a graph or equation b. a representation of an object, system, or process c. an exact copy of an object, system, or process d. a chemical formula

Explanation:

A physical model is a tangible or visual representation that stands - in for an object, system, or process. It doesn't have to be an exact copy. Graphs/equations and chemical formulas are not physical models.

Answer:

B. A representation of an object, system, or process