In a combustion engine, fuel is burned to produce mechanical energy. which of the following shows that an energy transformation has taken place? there is no change, matter is destroyed, heat is produced, or matter is created.

Heat is produced

Explanation:

From the law of conservation of energy and mass, these cannot be created nor destroyed but can convert from one form to another. When fuel is burnt, heat is produced which changes into mechanical energy ( potential energy + kinetic energy). Thus, chemical energy of the fuel transforms to heat energy which transforms to mechanical energy. This shows that energy transformation has taken place.

hello there!

your answer is a “generator”

a generator does not create energy but instead it transforms it.

it’s basically a motor working in reverse.