I would like to explore the relation of the effect of gravity (I deliberately do not say force) and energy. There is a simple situation I would like to understand in detail what happens. The situation: I'm staying on a solid ground and then I jump up. Now there are two sample enviroments I could do it. A. a very small asteroid in deep space. For this situation of relatively small gravity and low energies (alternatively high energies in little stronger gravity) the law of conservation of energy will prevail and energy from my jump will be converted into kinetic energy. Therefore I will continue to move away from the asteroid until some other form of matter/energy will not interfere with me and change my relative speed. B. I'm on the Moon. The situation is different here. After I jump up my new kinetic energy starts to diminish quickly until I stop relative to the surface of the Moon. Then without me anything doing and without interaction with any kind of energy I can detect I start to receive kinetic energy with opposite direction to my jump and keep receiving it more and more until I hit the surface again where the new kinetic energy is released as the energy of the impact. Is this the correct depiction of the situation B.? Do I really start to loose my new kinetic energy (if yes, then the question is where does it go?) until it is transferred away entirely and then receive the new "gravity energy" from an undetectable source (if yes, then where does this energy come from)? Or is it more like the gravity changes only the vector of my kinetic energy and the energy from my jump is the same energy as the energy of the impact? Or something totally different happens?