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- Dictionaryenergy/ˈɛnədʒi/
noun
- 1. the strength and vitality required for sustained physical or mental activity: "changes in the levels of vitamins can affect energy and well-being" Similar
- 2. power derived from the utilization of physical or chemical resources, especially to provide light and heat or to work machines: "nuclear energy" Similar
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May 28, 2024 · energy, in physics, the capacity for doing work. It may exist in potential, kinetic, thermal, electrical, chemical, nuclear, or other various forms. There are, moreover, heat and work—i.e., energy in the process of transfer from one body to another. After it has been transferred, energy is always designated according to its nature.
In quantum mechanics, energy is defined in terms of the energy operator (Hamiltonian) as a time derivative of the wave function. The Schrödinger equation equates the energy operator to the full energy of a particle or a system. Its results can be considered as a definition of measurement of energy in quantum mechanics.
the total of all your power and ability to be mentally and physically active: I'm going to channel all my energies into getting a better job. See more. Fewer examples. I'm not being lazy - I'm just saving my energy for later. Her experience and energy are a winning combination in business.
: a fundamental entity of nature that is transferred between parts of a system in the production of physical change within the system and usually regarded as the capacity for doing work. 4. : usable power (such as heat or electricity) also : the resources for producing such power. Synonyms.
Basics. +Menu. Energy is the ability to do work. Scientists define energy as the ability to do work. Modern civilization is possible because people have learned how to change energy from one form to another and then use it to do work.
Nov 27, 2017 · Energy Definition. In science, energy is the ability to do work or heat objects. It is a scalar physical quantity, which means it has magnitude, but no direction. Energy is conserved, which means it can change from one form to another, but isn’t created or destroyed.
energy. / ĕn ′ ər-jē / The capacity or power to do work, such as the capacity to move an object (of a given mass) by the application of force. Energy can exist in a variety of forms, such as electrical, mechanical, chemical, thermal, or nuclear, and can be transformed from one form to another.
