Classical physics is defined as the branch of physics that excludes quantum mechanics and relativity, focusing on macroscopic phenomena that are deterministic and operate under Newtonian principles. It is often described as the physics of everyday life, although modern technology complicates this view. For learning resources, Richard Feynman's books are recommended for beginners, while textbooks and online courses from MIT OpenCourseWare and Khan Academy are valuable for deeper understanding. The Giancoli textbook is highlighted as a great starting point for those new to physics, offering basic concepts without calculus. Overall, the discussion emphasizes the importance of context in understanding classical physics and the variety of resources available for learners at different levels.