The laws or principles of nature; physical laws that govern natural phenomena.
慣性や重力は基本的な物理の法則だ。
Inertia and gravity are fundamental laws of physics.
物理の視点からその現象を説明する必要がある。
It is necessary to explain that phenomenon from a physical perspective.
量子力学は古典物理とは異なる物理法則を扱う。
Quantum mechanics deals with physical laws different from classical physics.
Abbreviation of 'physics' (the academic discipline), as in classes or studies of physics.
大学で物理（=物理学）を専攻する予定だ。
I plan to major in physics at university.
物理の授業は毎週火曜と木曜にあります。
Physics classes are held every Tuesday and Thursday.