Foundations of Physics: Physical World and Measurement

Physics is the foundational science that explains how the universe behaves, but mastering it requires a rock-solid understanding of its starting points: physical quantities, dimensions, and measurement. This text-based course breaks down these essential concepts into digestible lessons, helping you build confidence from the ground up. You will transition from memorizing formulas to deeply understanding how physical laws are formulated and tested. What you'll learn: Understand the fundamental forces of nature and the scope of modern physics; Master the International System of Units (SI) and learn to convert between different unit systems; Apply dimensional analysis to verify the correctness of physical equations; Analyze errors in measurement, calculating absolute, relative, and percentage errors; Determine significant figures correctly in scientific calculations; Practice solving multiple-choice questions designed to test your conceptual clarity. The course begins with the absolute basics, defining key terminology and the scientific method, before guiding you through structured written exercises and practice problems that reinforce your learning. This course is designed specifically for beginners, high school students, and anyone preparing for foundational physics exams with no prior advanced knowledge required. Start reading today to build a strong scientific foundation.