A rocket nozzle is a critical component of a rocket engine that directs the flow of exhaust gases produced during combustion. It converts the high-pressure, high-temperature gas into a high-speed jet, generating thrust according to Newton's Third Law of Motion. The shape of the nozzle, often a converging-diverging design, helps to accelerate the gas efficiently. Rocket nozzles can be classified into two main types: conical nozzles and bell nozzles. Conical nozzles have a simple, straight design, while bell nozzles are more complex and optimized for performance. The choice of nozzle affects the rocket's efficiency and overall performance during flight.