What process involves the burning of fuel to release energy?

The correct answer is combustion. Combustion is a chemical process that involves the reaction of a fuel with an oxidant, usually oxygen, resulting in the release of energy in the form of heat and light. This process is fundamental to various applications, especially in internal combustion engines, where fuel is ignited to produce energy that powers the vehicle. During combustion, fuels such as gasoline or diesel react with oxygen, and through this exothermic reaction, they release energy used to move pistons and turn the engine's crankshaft.

Understanding combustion is essential for various engineering applications, particularly in engines, as it underscores the importance of fuel type, air-fuel ratio, and temperature for optimal performance. The energy produced during combustion is what makes it possible for engines to operate efficiently and power various machinery.