Today’s meaning refers to the internal laws and principles of things. It is a natural science that studies the structure of matter (mass), the interaction of matter and the laws of motion. It is a natural science based on experiments and observations. Refers to the truth of things in the scientific world. Such as experimental physics, molecular physics, etc.
The word "physics" in Chinese first appeared in the Warring States Period. It first appeared in the article "He Guanzi Wang Xi": "Pang Ziyun: 'I would like to hear about it. "Human Qing Physics" means the principle of things, and was later widely used in Chinese classics such as "Huainanzi", "Zhuangzi", and "Xunzi"
And "physics" in foreign languages. The word first appeared in ancient Greek φυσ?κ, and its original meaning was nature.