Question

which of the following statements is accurate? the energy out of a system is always more than the energy input. you can never get more energy out of a system than you put in. the energy out of a system is always doubles the energy input.

Explanation:

To determine the accurate statement, we analyze the principle of energy conservation and efficiency. In any system, energy is never created or destroyed (law of conservation of energy), and due to inefficiencies (like energy loss as heat, sound, etc.), the useful energy output is always less than or equal to the input energy. The first statement is wrong as output can't be more than input. The third statement is wrong as energy output isn't always double the input. The second statement aligns with energy principles: you can't get more energy out than you put in (considering losses, useful output ≤ input).

Answer:

You can never get more energy out of a system than you put in.