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'Energy' may refer to:
In 'science and society':

★ Energy (science), concepts related to matter, work, and force in physics and other sciences.

★ Energy (Society), energy resources, fuels, electricity and associated technologies

★ Energy (signal processing), the energy Es of a continuous-time signal x(t)

★ Energy (spirituality), invoked by spiritualists for alternative modes of healing the human body

★ Energy (psychological), a psychological term used to describe the states of human mind

★ Vitalism, often referred to as "energy"
In 'music':

★ ''Energy'' (album), the only full CD released by Operation Ivy

★ Energy (band), a Taiwanese boy group

★ Energy, a Melodic Hardcore band from Stoughton, Massachusetts

★ Energy Rekords, a record label

★ "Energy", a song by The Pillows from ''Pantomime''

★ "Energy", a song by The Apples in Stereo from ''New Magnetic Wonder''

★ "Energy", a song in the ''LazyTown'' soundtrack
In 'radio stations':

★ KNGY, Energy 92.7, San Francisco, California

★ KNRJ, Energy 92.7 & 101.1, Phoenix, Arizona

★ KBZD, Energy 99.7, Amarillo, Texas

★ NRJ Radio, a radio network in Paris, France

★ WNRJ, Energy 106.1, Poquoson, Virginia

Contents

Types of energy

See also

Types of energy

★ Binding energy, a concept explaining how the constituents of atoms or molecules are bound together

★ Blue energy, energy retrieved from the difference in the salt concentration between seawater and river water

★ Bond energy, a measure of the strength of a chemical bond

★ Dark energy, used to explain some cosmological phenomena

★ Elastic energy, which causes or is released by the elastic distortion of a solid or a fluid

★ Electromagnetic energy, energy of radiations e.g. light

★ Food energy, energy in food that is available through digestion

★ Gibbs free energy, a related concept in chemical thermodynamics that incorporates entropy considerations too

★ Helmholtz free energy, a thermodynamic potential that measures the "useful" work obtainable from a closed thermodynamic system at a constant temperature, useful for studying explosive chemical reactions

★ Interaction energy, the contribution to the total energy that is a result of interaction between the objects being considered

★ Internal energy, potential for a closed thermodynamic system held at constant entropy

★ Kinetic energy, the form of energy as a consequence of the motion of an object or its constituents

★ Mechanical energy, the potential energy and kinetic energy present in the components of a mechanical system.

★ Negative energy

★ Nuclear energy, energy that is the consequence of decomposition or combination of atomic nuclei

★ Planck energy, 1.22 × 10¹⁹ GeV (billion electron volts)

★ Potential energy, the form of energy that is due to position of an object

★ Psychic energy, energy by which the work of the personality is performed

★ Biological energy or bioenergetics, the potential of organisms to undergo or cause a change in their form or function

★ Chemical energy or energy in chemistry, is the potential for materials/substances to undergo transformations or transform other substances

★ Earth's energy in earth science, the potential of various constituents of the planet Earth to influence one another

★ Energy of the cosmos in physical cosmology, energy transformations in the universe beyond the planet Earth

See also

★ Energetics

★ List of energy topics

★ Entropy

★ Fuel

★ International Energy Agency

★ Stress-energy tensor