To prepare for a physics final, focus on solving a variety of problems to become familiar with the material. Review old homework and tests to reinforce your understanding, while also practicing new problems to avoid relying solely on memory. Clarify any confusing concepts through discussions with professors or by consulting textbooks. Familiarity with equations is crucial, even if an equation sheet is provided, as deriving additional equations can simplify some questions. A comprehensive understanding of physics concepts will enhance problem-solving skills on the final exam.