Gasoline or diesel. In some rare engines ethanol is burned, of a mixture of gasoline and ethanol.
Coming up with this answer would've been easier than posting this question here.
If this is for your homework, then try actually using your brain, that's what this is about. Not wether you finished it or not.
In an internal combustion engine, the provided energy is chemical energy. By means of combustion it is transformed into heat energy. This heat energy is transformed in to motion/kinetic energy in an internal combustion engine.
In an internal combustion engine fuel is burned in a combustion chamber or cylinder inside the engine
combustion
Thermal Energy
Thermal Energy
An internal combustion engine converts chemical energy into Thermal Energy, and converts thermal energy into mechanical energy via the pistons, connecting rods, and crankshaft .
to produce mechanical energy
a gasoline engine is an Internal combustion engine
Internal combustion engines generate mechanical energy through the controlled explosion of fuel and air inside the engine's cylinders. This mechanical energy is then converted into kinetic energy to power the vehicle.
The internal combustion engine is used in almost everything that needs power or motive traction. Cars, trucks, motorcycles, boats, ships, aircraft, and many other things use internal combustion engines. The internal combustion engine is needed to convert fuel chemical energy to rotational mechanical energy, which can now be used for many different applications.
An internal combustion engine is a type of heat engine that generates mechanical energy by burning fuel inside the engine. A heat engine, on the other hand, is a broader category of engines that convert heat energy into mechanical work through various processes, including combustion, thermodynamic cycles, and heat transfer. In essence, all internal combustion engines are heat engines, but not all heat engines are internal combustion engines.
The source of thermal energy in an internal combustion engine is from the combustion of fuel (such as gasoline or diesel) inside the engine cylinders. The controlled explosion of the fuel-air mixture generates heat energy that is converted into mechanical energy to power the vehicle.