1. Physics is the branch of science concerned with the nature and properties of matter and energy. 2. It studies concepts such as force, motion, energy, matter, heat, sound, light, and the composition of atoms. 3. Physics seeks to understand how the universe behaves through laws and principles that describe natural phenomena. 4. It uses mathematical models and experiments to explain and predict physical events. 5. Examples include Newton's laws of motion, the theory of relativity, and quantum mechanics. 6. In summary, physics explains how things move, interact, and change in the physical world.