823 stands for course number, and the course number of college physics is 823. College physics is a basic course of university science and engineering. Through the study of the course, students are familiar with the structure, nature, interaction and basic laws of natural substances, laying the necessary physical foundation for the subsequent professional foundation and professional courses, and further mastering relevant knowledge. But engineering majors mainly teach mechanics and electromagnetism. Through the study of the course, students can gradually master the ideas and methods of physics research. They can not only acquire knowledge, but also have the ability of establishing physical model, qualitative analysis, estimation and quantitative calculation, acquire knowledge independently and integrate theory with practice. Broaden thinking, stimulate the spirit of exploration and innovation, enhance adaptability, and enhance overall scientific and technological literacy. Through course study, students can master scientific learning methods, form good study habits, and form dialectical materialist world outlook and methodology.

This book covers the core content of "Basic Requirements for College Physics Teaching for Non-physical Science and Technology Subjects" newly formulated by the Ministry of Education, and selects a considerable number of expanded contents. In the process of revision, this book inherits the characteristics of 1 version, and adopts the methods of compressing classics, simplifying modernity and highlighting key points to select and organize the content.

The book consists of 13 chapters, covering mechanics, heat, electromagnetism, vibration and wave, wave optics, special relativity and the basis of quantum physics. Each chapter includes not only the basic content, but also reading materials, review summary and exercises. The content is appropriate in depth, the explanation is correct and clear, the narrative is fascinating, the examples are detailed, the book is combined with practice, and special attention is paid to introducing the application of physical knowledge and physical thought in practice.

This book can be used as college physics textbooks and teaching reference books for non-physics majors in colleges and universities, as well as physics textbooks for various majors in higher vocational education, and can also be selected by other related majors for readers to read.