Energy can be changed from one form to another. changes in the form of energy are called energy conversions. in an automobile engine, fuel is burned to convert into heat energy. the is then changed into .

1. Chemical energy

2. Mechanical energy

Explanation:

The law of conservation of energy states that energy changes from one form of energy to another but it is neither created nor destroyed.

The fuel consists of chemical energy which when burn results in the release of energy in the form of heat or thermal energy. The heat energy is converted into mechanical energy by the internal machinery of the automobile engine. This mechanical energy is used to run the automobile.

in 1783 cavendish was working with his hydrogen gas and found that when he burned it and condensed the vapor it was water. this was very significant since it disproved the greek theory of elements completely since water was not a simple substance but the product of two gases. it was lavoisier who hearing of the experiment gave cavendish's gas the name hydrogen ("water-producer") and added that hydrogen burned by combining with oxygen and that water was a hydrogen-oxygen combination.

explanation: