…the strength and vitality required for sustained physical or mental activity…
…a theoretical form of energy postulated to act in opposition to gravity and to occupy the entire universe, accounting for most of the energy in it and causing its expansion to accelerate…
…a thermodynamic quantity equivalent to the capacity of a system to do work…
…the mass of a body regarded as energy, according to the laws of relativity…
…electrical energy obtained from harnessing the wind with windmills or wind turbines…
…an assessment of the energy needs and efficiency of a building or buildings…
…a soft drink containing a high percentage of sugar, caffeine, or another stimulant, typically consumed during or after sporting activity or as a way of overcoming tiredness…
…the fixed amount of energy that a system described by quantum mechanics, such as a molecule, atom, electron, or nucleus, can have…
…the energy that holds a nucleus together. This is equal to the mass defect of the nucleus…
…the energy in a system arising from the relative positions and interactions of its parts…
…a measure of the energy contained in the crystal lattice of a compound, equal to the energy that would be released if the component ions were brought together from infinity…
…the energy released during nuclear fission or fusion, especially when used to generate electricity…
…the minimum quantity of energy which the reacting species must possess in order to undergo a specified reaction…
…energy fuelled in ways that do not use up the earth’s natural resources or otherwise harm the environment, especially by avoiding the use of fossil fuels or nuclear power…
…the energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors…
…a thermodynamic quantity equal to the enthalpy (of a system or process) minus the product of the entropy and the absolute temperature…
…a principle stating that energy cannot be created or destroyed, but can be altered from one form to another…
…the ratio of a heating or cooling system’s output, per hour, in British thermal units to the input in watts, used to measure the system’s efficiency…
…an agency founded in 1974, within the framework of the OECD, to coordinate energy supply and demand worldwide. Its headquarters are in Paris…
…an institution established in 1957 to aid the exploitation of nuclear discoveries in Europe…
…an international organization set up in 1957 to promote research into and the development of atomic energy for peaceful purposes…
…a thermodynamic quantity equal to the enthalpy (of a system or process) minus the product of the entropy and the absolute temperature…
…the equal distribution of the kinetic energy of a system among its various degrees of freedom…
