I suspect the thing you are looking for is Dark Energy.
There is no opposite of dark energy in the sense that there exists something that is the exact opposite of dark energy. Dark energy speeds the rate of expansion of space, even empty space, and gravity, mass, or matter causes the opposite in that it causes a decrease in the rate of expansion of space in areas that have matter.
No
No.
Yes, gravity!
Tidal power is utilising the gravity of the Moon
Any upward force works against gravity,since they act in opposite directions.
Potential energy.
There is no opposite of dark energy in the sense that there exists something that is the exact opposite of dark energy. Dark energy speeds the rate of expansion of space, even empty space, and gravity, mass, or matter causes the opposite in that it causes a decrease in the rate of expansion of space in areas that have matter.
This fusion gives off energy, which expands the surface of the star. Gravity pulls the outer parts of a red giant towards the center.
anti gravity
No. Gravity is a force. Potential energy turns into kinetic (moving) energy when you fall due to gravity.
well, i think that the answer to your question is yes. regular gravity bends space time drawing mass together, and anti gravity must be bending space time opposite to regular gravity and so, mass is pushed apart.
Exergy and Energy. When the sign of potential energy is negative this is called exergy and indicates that energy comes out, thus exergy. This is the case when opposite charges are involved, the potential energy is negative and this configuration emits energy. When the charges are the same the sign is positive and energy is absorbed in this configuration.Newton discovered that gravity is exergy, emits energy as the masses attract each other. Taking the center at one of the masses, this accounts for the center seeking behavior of gravity.
gravitational potential energy arises from the law of gravity
gravity is something that holds you down, anti-gravity is when you have no weight. Or to say it another way -- Gravity is real it exists in this universe. anti-gravity is fictitious it only exists in the imagination. Edit: Gravity is the universal attraction between massive objects. As postulated by Einstein it is a positive warpage of space-time by energy densities (recall mass / energy equivalency). Anti-gravity would be just the opposite; a negative warpage of space-time brought on by an energy density less than zero. This negative "mass" would appear to be repulsive to ordinary bodies.
Energy is involved, but the gravity between two objects is a force, not an energy.
There is no "gravity kinetic energy". There is gravitational energy (a type of potential energy), and - separately - there is kinetic energy (the energy of movement).