Final answer:
Mental models are true representations of a problem and are used to conceptualize and visualize complex phenomena. They are justifiable with experimental evidence but have limitations in their accuracy.
Step-by-step explanation:
Mental models are indeed representations of a problem. This statement is TRUE. Mental models are used extensively in various fields, including physics, to conceptualize and visualize phenomena that are too complex or abstract to be directly observed or represented. For instance, the planetary model of the atom is a mental model that depicts electrons orbiting a nucleus, similar to planets orbiting a sun, assisting in the explanation of atomic spectra. Although such models are justified with experimental evidence, they have limitations and are accurate only under specific conditions. Furthermore, mathematical models provide a description of a phenomenon using mathematical concepts, which can be applied both qualitatively and quantitatively to analyze situations or solve problems.