Where does the rockets power come from?

A rocket's power comes from the combustion of propellant, which typically consists of fuel and an oxidizer. When ignited, this mixture produces high-pressure and high-temperature gases that rapidly expand and are expelled out of the rocket's engine. This action generates thrust according to Newton's third law of motion, allowing the rocket to propel itself into space. The specific design and type of propellant used can vary, influencing the rocket's performance and efficiency.