(physics) The potential energy of a magnetic field.

(physics) The energy equal to the surface tension at an interface.

(physics) The energy needed to remove an electron from an atom or molecule to infinity

The Helmholtz free energy, A (the internal energy of a system minus the product of its entropy and absolute temperature)

(physics) The energy present in an object because of its mass

(physics) The radiant energy of the visible portion of a spectrum of light

(physics) The energy transmitted by radio-frequency electromagnetic radiation

The kinetic energy of a projectile at the point of emergence from the muzzle of a gun

(physics) The extra binding energy associated with pairs of nucleons of the same kind; this results in nuclei having odd numbers of protons or neutrons having a lower binding energy and being less stable (than those with even numbers)

(physics) The characteristic energy at which the amplitude of a system undergoing resonance is enhanced.