Here's why:
* Chemical Energy: This is stored in the fuel used by the engine (like gasoline, diesel, or even biofuels). The chemical bonds within the fuel molecules contain potential energy.
* Mechanical Energy: This is the energy of motion and position. It's what makes the engine parts move and ultimately powers the vehicle.
The process of combustion in an engine releases the chemical energy stored in the fuel, converting it into heat energy. This heat energy then expands gases within the engine's cylinders, creating pressure that drives a piston. The piston's motion is then converted into rotational motion of the crankshaft, which ultimately becomes the mechanical energy that powers the vehicle.
