Fizik, or physics, is the natural science that studies matter, energy, and the fundamental forces of nature. It seeks to understand how the universe behaves, from the smallest particles to the largest galaxies. Key concepts in fizik include force, motion, energy, and gravity, which help explain everyday phenomena and complex systems. Fizik is divided into various branches, such as classical physics, quantum physics, and thermodynamics. Each branch focuses on different aspects of physical laws and their applications. By using mathematical models and experiments, fizik provides insights that lead to technological advancements and a deeper understanding of the universe.