Foundational Physics: Atomic Structure, Matter, and Special Relativity

Modern technology and scientific discovery rely on fundamental theories about how matter behaves and how space and time interact. If you want to build a deep understanding of the physical world, start with the core concepts. This course provides a clear, text-based introduction to the physics governing the very small (atoms and molecules) and the very fast (relativistic speeds). You will gain the conceptual tools needed to analyze physical systems from a molecular perspective and calculate the effects of motion near the speed of light. What you'll learn: * Understand the fundamental properties of gases, liquids, and solids using molecular kinetic theory. * Analyze the structure of the atom, including the Bohr model and basic quantum mechanical concepts. * Master the core postulates of Special Relativity, including the constancy of the speed of light. * Calculate the effects of time dilation and length contraction on moving observers. * Apply the mass-energy equivalence principle ($E=mc^2$) and relativistic momentum. * Practice relating these foundational principles to modern applications like GPS synchronization and basic quantum theory. The course begins by establishing the macroscopic behavior of matter through molecular physics, progresses to the microscopic world of atomic structure and energy levels, and concludes with the revolutionary concepts introduced by Special Relativity. All concepts are explained through detailed written explanations and worked examples. This course is designed for absolute beginners in physics or science students needing a comprehensive refresher on foundational topics. No prior knowledge of advanced mathematics or physics is required. Start building your knowledge of the universe's most fundamental laws today.