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entity go
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)

physical entity go
an entity that has physical existence

process, physical process go
a sustained phenomenon or one marked by gradual changes through a series of states

phenomenon go
any state or process known through the senses rather than by intuition or reasoning

natural phenomenon go
all phenomena that are not artificial

physical phenomenon go
a natural phenomenon involving the physical properties of matter and energy

energy, free energy
(physics) a thermodynamic quantity equivalent to the capacity of a physical system to do work

noun.phenomenon

13 Subcategories

activation energy, energy of activation go
the energy that an atomic system must acquire before a process (such as an emission or reaction) can occur
alternative energy go
energy derived from sources that do not use up natural resources or harm the environment
atomic energy, nuclear energy go
the energy released by a nuclear reaction
binding energy, separation energy go
the energy required to separate particles from a molecule or atom or nucleus
chemical energy go
that part of the energy in a substance that can be released by a chemical reaction
electricity, electrical energy go
energy made available by the flow of electric charge through a conductor
energy level, energy state go
a definite stable energy that a physical system can have
rest energy go
the energy equivalent to the mass of a particle at rest in an inertial frame of reference
work go
(physics) a manifestation of energy
heat, heat energy go
a form of energy that is transferred by a difference in temperature
mechanical energy go
energy in a mechanical form
radiant energy go
energy that is transmitted in the form of (electromagnetic) radiation
radiation go
energy that is radiated or transmitted in the form of rays or waves or particles