Energetics

Energetics is the study of energy, and may refer to:

Thermodynamics, branch of physics and chemistry that deals with energy, work and heat
Bioenergetics, field in biochemistry that concerns energy flow through living systems and cells
Energy flow, study of the energy balance through living things within an ecosystem
Energeticism, obsolete microscopic theory of chemistry
Energetic materials, refers to explosives, propellants or pyrotechnic materials which rapidly release energy when subjected to an initiating stimulus