Fundamentals of Physics: The First Law of Thermodynamics

Understanding how energy transforms and moves is fundamental to grasping the physical world. This text-based course guides you through the core principles of thermal physics, focusing on the First Law and how it governs energy conservation. By reading through these structured lessons, you will transition from a basic understanding of heat and work to confidently analyzing ideal gas behaviors and thermodynamic systems. What you'll learn: - Understand foundational concepts including systems, surroundings, state variables, and thermodynamic equilibrium. - Analyze the behavior of ideal gases during isothermal, isobaric, isochoric, and adiabatic processes. - Apply the First Law of Thermodynamics to calculate heat transfer, work done, and changes in internal energy. - Explore real-world applications of energy conservation in modern devices like engines, refrigerators, and heat pumps. - Practice solving practical physics problems through guided written exercises and step-by-step calculations. The course begins with essential terminology and fundamental definitions of thermal physics before guiding you through gas laws, system boundaries, and energy equations. You will progress at your own pace through clear written explanations, practical examples, and conceptual review questions. Designed for beginners, students, and physics enthusiasts, this course requires no prior knowledge of advanced thermodynamics—only basic algebra. Start reading today to build a solid foundation in thermal physics and energy systems.