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Historically, physics formed the core of the discipline called "Natural Philosophy". This "Philosophy" correctly emphasizes that physics is much more than a collection of facts, physical laws, and formulae - it is a powerful way of thinking about, and making sense of, the physical universe that we inhabit. In order to understand the world-view provided by physics, and especially to apply its understanding and methodology to other areas, you must not only know the facts and some formulas, but you must also think like a physicist. This involves principally problem solving: organizing this your knowledge so that it can be applied to new situations, and being able to reach conclusions about these situations that are reliable and whose limitations and errors can be estimated quantitatively.
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