Question

1000 joules of energy are put into a pulley system, and 400 joules come out. What does the

Law of Conservation of Energy imply about the lost energy?
The pulley system could be improved to conserve some of the lost energy.
The lost energy cannot be recovered.
The lost energy is not truly lost, but it changed into a different form.
The lost energy is caused by friction.

Answer 1

[AI-generated answer — Bot GPT 3.5]

The lost energy is not truly lost, but it changed into a different form. This is in accordance with the Law of Conservation of Energy, which states that energy cannot be created or destroyed, only transferred or converted from one form to another. In this case, some of the energy put into the pulley system may have been converted into heat due to friction or other factors.