Which component is responsible for converting the vehicle's electrical energy to mechanical energy?

The starter motor is responsible for converting the vehicle's electrical energy into mechanical energy. When a driver turns the ignition key, the battery sends electrical current to the starter motor, which then engages and spins the engine's flywheel. This mechanical energy is what initiates the engine's combustion process and gets the vehicle running.

While other components play crucial roles in the vehicle's electrical system, they do not perform this specific function. The alternator generates electrical energy to recharge the battery and power the electrical systems when the engine is running. The battery provides the initial electrical energy needed to start the engine, and the ignition coil transforms the battery's voltage into a higher voltage to create a spark in the engine. However, it is the starter motor that directly translates electrical energy into the mechanical energy necessary to start the engine.