Aerodynamics is the study of how gases interact with moving objects, particularly air interacting with aircraft, rockets, and other vehicles. It focuses on understanding lift, drag, and thrust forces that affect motion, stability, and performance. Key topics include fluid flow around bodies, boundary layers, pressure distribution, and airfoil and wing characteristics. Principles such as Bernoulli’s equation, momentum theory, and continuity are used to analyze airflow and predict behavior under different conditions. Aerodynamics is fundamental in designing efficient, stable, and safe aircraft, spacecraft, and automotive systems, as well as in optimizing fuel efficiency and overall performance.