Whats a good example of the law of conservation of energy?
The chemical energy stored in gasoline is potential energy. Burn it in the engine of your car, and it converts to heat and a little light. About 30% of the heat is used to expand the air, drive the piston down (mechanical kinetic energy), and move your car. The rest of the heat is wasted and ends up in the exhaust or in the radiator. The light is also converted to heat. Now once your car is moving and you want to stop, the brakes convert the mechanical energy of your car in motion into heat. All of the heat ends up in the atmosphere…everything that humans do creates heat.
