How does an airplane motor utilize the energy from gasoline?

An airplane motor primarily utilizes the energy from gasoline to turn a propeller, which is crucial for generating lift and propulsion needed for flight. When gasoline combusts in the engine, it undergoes a chemical reaction that releases energy. This energy is harnessed through a series of processes in the engine, converting the thermal energy produced from combustion into mechanical energy.

This mechanical energy is then used to turn the propeller, creating thrust that propels the airplane forward. The turning of the propeller is an essential part of flight mechanics, as it allows the aircraft to move through the air, enabling it to achieve lift and maintain its flight path.

Other options relate to different forms of energy but do not accurately represent the primary function of the airplane motor's utilization of gasoline. For instance, while some heat may be released, the main purpose of the combustion process is to produce thrust, not merely heat. Sound energy is indeed generated as a byproduct of engine operation, but it's not the intended use of gasoline's energy. Storing energy for later use isn’t relevant in the context of how an airplane motor functions during flight, as the fuel is consumed to produce immediate thrust rather than being stored.