Introduction to Modern Physics: Quantum Mechanics and Relativity

Miacademy & MiaPrep Learning Channel

This video serves as an engaging introduction to the transition from Classical Physics to Modern Physics, covering the major scientific shifts that occurred in the early 20th century. It begins by contrasting pre-1900s physics (electricity and magnetism) with the revolutionary discoveries that followed, specifically addressing the limitations of classical theories in explaining phenomena like the nature of light. The instructor uses historical anecdotes, such as Max Planck's advisor advising him against studying physics, to highlight how drastically the scientific landscape changed. The content explores three pillars of Modern Physics: Quantum Mechanics, Special Relativity, and General Relativity. It breaks down complex concepts using accessible animations and analogies, explaining the Photoelectric Effect (wave-particle duality), the Michelson-Morley experiment (disproving the luminiferous aether), and the counter-intuitive nature of time dilation. The video also touches upon the Big Bang theory as an application of General Relativity to cosmology. For educators, this video is an excellent conceptual overview that bridges the gap between standard mechanics and advanced theoretical physics. It provides a narrative structure to physics history, making it ideal for introducing a unit on modern physics or light. The included true/false assessment at the end offers immediate checking for understanding, while the clear visualizations of electromagnetic waves and the twin paradox help demystify abstract ideas for high school students.