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  2. Category:Forms of energy - Wikipedia

    en.wikipedia.org/wiki/Category:Forms_of_energy

    Solar energy (6 C, 60 P) Pages in category "Forms of energy" The following 14 pages are in this category, out of 14 total. This list may not reflect recent changes. A.

  3. Energy - Wikipedia

    en.wikipedia.org/wiki/Energy

    Energy (from Ancient Greek ἐνέργεια (enérgeia) 'activity') is the quantitative property that is transferred to a body or to a physical system, recognizable in the performance of work and in the form of heat and light.

  4. Outline of energy - Wikipedia

    en.wikipedia.org/wiki/Outline_of_energy

    Energy transformation, relating to energy's changes from one form to another. Energy (signal processing), the inner product of a signal in the time domain; Energy density spectrum, relating to the distribution of signal energy over frequencies. Potential energy, the form of energy that is due to position of an object; Kinetic energy, the form ...

  5. List of states of matter - Wikipedia

    en.wikipedia.org/wiki/List_of_states_of_matter

    This is a low-energy phase that can only be formed in laboratory conditions and at very low temperatures. It must be close to absolute zero. Satyendra Nath Bose and Albert Einstein predicted the existence of such a state in the 1920s, but it was not observed until 1995 by Eric Cornell and Carl Wieman.

  6. Thermodynamics - Wikipedia

    en.wikipedia.org/wiki/Thermodynamics

    where U 0 denotes the internal energy of the combined system, and U 1 and U 2 denote the internal energies of the respective separated systems. Adapted for thermodynamics, this law is an expression of the principle of conservation of energy, which states that energy can be transformed (changed from one form to another), but cannot be created or ...

  7. Outline of physics - Wikipedia

    en.wikipedia.org/wiki/Outline_of_physics

    Motion, position, and energy; Different forms of Energy, their inter-conversion and the inevitable loss of energy in the form of heat (thermodynamics) Energy conservation, conversion, and transfer. Energy source the transfer of energy from one source to work in another. Kinetic molecular theory. Phases of matter and phase transitions

  8. Sources of electrical energy - Wikipedia

    en.wikipedia.org/wiki/Sources_of_electrical_energy

    Light: Energy produced by light being absorbed by photoelectric cells, or solar power. Chemical: Energy produced by chemical reaction in a voltaic cell, such as an electric battery. Pressure: Energy produced by compressing or decompressing specific crystals. Magnetism: Energy produced in a conductor that cuts or is cut by magnetic lines of ...

  9. Energy transformation - Wikipedia

    en.wikipedia.org/wiki/Energy_transformation

    Energy transformation, also known as energy conversion, is the process of changing energy from one form to another. [1] In physics , energy is a quantity that provides the capacity to perform work or moving (e.g. lifting an object) or provides heat .