Physics is a branch of science that explores the fundamental principles governing the universe, from the smallest subatomic particles to the vast expanse of galaxies. It seeks to understand how matter and energy interact through observation, experimentation, and mathematical analysis. As a course, physics introduces students to core concepts such as motion, forces, energy, waves, electricity, magnetism, and modern physics, including quantum mechanics and relativity. It develops problem-solving skills by applying mathematical techniques to real-world situations, making it essential in fields like engineering, medicine, and technology. Physics encourages critical thinking and analytical reasoning, fostering a deeper appreciation for the natural world and its underlying laws. Whether in theoretical exploration or practical applications, studying physics provides insights that drive innovation and technological advancement.