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FREE ENERGY
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I. (noun)
Sense 1
Meaning:
(physics) a thermodynamic quantity equivalent to the capacity of a physical system to do work; the units of energy are joules or ergs
Example:
energy can take a wide variety of forms
Synonyms:
Classified under:
Nouns denoting natural phenomena
Hypernyms ("free energy" is a kind of...):
physical phenomenon (a natural phenomenon involving the physical properties of matter and energy)
Domain category:
natural philosophy; physics (the science of matter and energy and their interactions)
Hyponyms (each of the following is a kind of "free energy"):
activation energy; energy of activation (the energy that an atomic system must acquire before a process (such as an emission or reaction) can occur)
alternative energy (energy derived from sources that do not use up natural resources or harm the environment)
atomic energy; nuclear energy (the energy released by a nuclear reaction)
binding energy; separation energy (the energy required to separate particles from a molecule or atom or nucleus; equals the mass defect)
chemical energy (that part of the energy in a substance that can be released by a chemical reaction)
electrical energy; electricity; power (energy made available by the flow of electric charge through a conductor)
energy level; energy state (a definite stable energy that a physical system can have; used especially of the state of electrons in atoms or molecules)
rest energy (the energy equivalent to the mass of a particle at rest in an inertial frame of reference; equal to the rest mass times the square of the speed of light)
work ((physics) a manifestation of energy; the transfer of energy from one physical system to another expressed as the product of a force and the distance through which it moves a body in the direction of that force)
heat; heat energy (a form of energy that is transferred by a difference in temperature)
mechanical energy (energy in a mechanical form)
radiant energy (energy that is transmitted in the form of (electromagnetic) radiation; energy that exists in the absence of matter)
radiation (energy that is radiated or transmitted in the form of rays or waves or particles)
