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Understanding Energy in Physics

Energy is a quantitative property in physics that can be transferred and is recognizable in work, heat, and light. It is conserved, meaning it can change forms but cannot be created or destroyed, with the joule (J) as its SI unit. Common forms include kinetic, potential, elastic, chemical, radiant, and internal energy, and all living organisms continuously exchange energy.

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Jez Va
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21 views1 page

Understanding Energy in Physics

Energy is a quantitative property in physics that can be transferred and is recognizable in work, heat, and light. It is conserved, meaning it can change forms but cannot be created or destroyed, with the joule (J) as its SI unit. Common forms include kinetic, potential, elastic, chemical, radiant, and internal energy, and all living organisms continuously exchange energy.

Uploaded by

Jez Va
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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According to wikipedia

In physics, 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. Energy is a conserved quantity—the law of conservation of energy
states that energy can be converted in form, but not created or destroyed. The unit of
measurement for energy in the International System of Units (SI) is the joule (J).

Common forms of energy include the kinetic energy of a moving object, the potential energy
stored by an object (for instance due to its position in a field), the elastic energy stored in a solid
object, chemical energy associated with chemical reactions, the radiant energy carried by
electromagnetic radiation, and the internal energy contained within a thermodynamic system. All
living organisms constantly take in and release energy.

Due to mass–energy equivalence, any object that has mass when stationary (called rest mass)
also has an equivalent amount of energy whose form is called rest energy, and any additional
energy (of any form) acquired by the object above that rest energy will increase the object's total
mass just as it increases its total energy.

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