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a controlled explosion (combustion) of fuel and air ignites expnds and is converted to rotational torque (power)
Gasoline (petrol) engines can be converted to run quite well on Compressed Natural Gas. It burns much cleaner than gasoline, with longer engine life,
A gasoline engine converts chemical energy into mechanical energy.
A soccer ball eventually stops because its energy disappears. When a light bulb is turned on, electrical energy is converted to light and heat. An automobile engine burns gasoline to converts its chemical energy to electrical energy.
the gasoline is used to create small explosions in the cylinder and pushes the pistons out to eventually turn a shaft. In theory, heat is converted into work.
Potential, then chemical, then mechanical.
The (auto) engine found in many cars. Fuel is burnt (chemical change resulting in heat) and converted to mechanical energy (through the action of the pistons and crankshaft). Explode or burn the chemicals, e.g gasoline engine burns gas (petrol) and turns the energy into mechanical energy.
The gasoline engine in the car burns gasoline. This chemical reaction produces energy which is converted to mechanical energy and drives the car down the street. More precisely, the gasoline burns very rapidly in the cylinders and produces gas which expands and forces the pistons to move. The movement of the pistons in the cylinders causes the crack shaft to turn due to the cranking action of the crank case. The turning of the crank shaft turns the wheels by means of a linkage of gears.
Thermal energy
That's an engine that burns gasoline, to produce motion. Many car engines use gasoline as fuel.
fire energy
Chemical change