It increases. It decreases. It remains constant. It is transferred out of the system.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: In a closed system, what happens to the total energy of the system as energy conversions take place?
Possibilities:
- It increases.
- It decreases.
- It remains constant.
- It is transferred out of the system.

It remains constant.