Energy
Science

The energy of an object due to its height above Earth’s surface
Gravitational potential energy
The energy of an object due to its height above Earths surface. Gravitational potential energy. It is the stored energy an object has because of its position above the ground, which can be converted into motion when it falls.

The energy released when the nuclei of atoms are split or combined
Nuclear energy
The energy released when the nuclei of atoms are split or combined. Nuclear energy. It is the powerful energy stored in the core of an atom, which can be released through splitting fission or joining fusion of atomic nuclei.