kinetic energy converted to potential energy chemical energy converted to kinetic energy chemical energy converted to thermal energy thermal energy converted to potential energy
I gave my students this multiple choice question: A certain type of hybrid car utilizes a braking system in which energy is recovered and stored in batteries. This is an example of which type of energy conversion?

Only one answer is correct among these 4 choices:
- kinetic energy converted to potential energy
- chemical energy converted to kinetic energy
- chemical energy converted to thermal energy
- thermal energy converted to potential energy

Could you tell me which one is correct?

kinetic energy converted to potential energy