Pick and copy all the incorrect options for the following question:

Why is the output energy of a machine always less than the input energy?

Options:
- Some of the energy is destroyed as the machine operates.
- The machine must overcome the constant force of magnetism.
- Useful energy decreases as energy is transferred to the surroundings.
- Some of the energy is released as heat when converted.



- Some of the energy is destroyed as the machine operates.



- The machine must overcome the constant force of magnetism.





- Some of the energy is released as heat when converted.

