Philosophy of physics is the study of the fundamental, philosophical questions underlying modern physics. Perhaps the main questions concern the nature of space and time, atoms and atomism, cosmology, the interpretation of the results of quantum mechanics, the foundations of statistical mechanics, determinism, and the nature of physical laws. Classically, several of the questions of this area were studied as part of metaphysics (for example, those about determinism and space and time). Today, philosophy of physics is very close to philosophy of science.

Subjects in the philosophy of physics: