Introductory Physics: Energy, Simple Machines, and Astronomy

Physics explains how the universe operates, from the force driving simple mechanical devices to the motion of celestial bodies. This beginner-friendly course offers a clear, structured approach to understanding core physical principles without overwhelming complexity. You will gain confidence in analyzing how energy changes forms, how machines ease physical work, and how fundamental physical laws govern space. What you'll learn: - Understand primary energy types, including potential, kinetic, and thermal energy - Analyze mechanical work, power, and the efficiency of simple machines - Examine the working principles of levers, pulleys, and inclined planes - Explore basic astronomy concepts, planetary motion, and orbital mechanics - Apply fundamental physics equations through step-by-step written exercises The material begins with key terminology, SI units, and basic scientific definitions before advancing to quantitative calculations and practical examples. You will read practical guides that break down physical formulas and finish with an introduction to space exploration principles. This course is tailored for grade 7 students, beginner science enthusiasts, and anyone seeking a strong baseline in physical science. No prior knowledge of physics is required. Begin reading today to build your foundational knowledge in physics.