This lecture introduces the fundamental concepts of physics, emphasizing the importance of curiosity and common sense in understanding the world. It covers the scientific approach to observation, mathematical description, and prediction of natural phenomena. The role of mathematics as the language of physics is highlighted, focusing on algebra, vectors, and basic calculus. Topics include the description of motion, dynamics, energy conservation, ideal gases, states of matter, and oscillatory motion. The lecture also delves into electrostatics, circuits, magnetostatics, and various forces in nature.