Question

Which of the following statements is accurate?

A: You can never get more energy out of a system than you put into a system.
B: The energy out of a system is always MORE than the energy input.
C: The energy out of a system is always EQUAL to the energy input.

Answer 1

Answer:

C

Explanation:

energy cannot be created nor destroyed; the same amount of work or energy you put in something, the same you're gonna get back, however all of it you cannot use because it will transferred to other forms of energy also. Therefore, the amount cannot be more or less, so it would have to be equal.

(Technically A is also correct but C is more precise so I'd assume C would be the superior answer)