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What gives the sun energy?

Updated: 9/14/2023
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8y ago

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Nuclear fusion of elements lighter than iron powers all stars. Basically, when two elements fuse together, there is a loss of mass in the "binding" that holds the nuclei together. In accordance with the law of preservation of matter (it cannot be created or destroyed), that must go somewhere. It is essentially "carried away" in the form of energy. It is this energy that is what keeps the sun, and all other stars, going strong.

In the sun, hydrogen is fusing to form helium.

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Q: What gives the sun energy?
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Continue Learning about Chemistry

Is it a chemical reaction when the moon gives off light energy?

No. The moon does not even give off light energy. It reflects light from the sun. This is a purely physical process.


What forms of energy does the sun have?

Primarily, the sun radiates energy in the form of light. Light waves, or photons, carry the energy away uniformly in all directions. The sun also transfers a miniscule proportion of its energy in other ways. It emits streams and bursts of kinetic energy and electric potential energy when it ejects high speed charged particles into space, commonly called the solar wind and solar flares. The sun also transfers kinetic and thermal energy to its orbiting planets through gravitationally induced tidal friction. Some suns explode following the depletion of all their fuel, resulting in a single, cataclysmic kinetic energy release. In this explosion, the sun releases potential atomic energy captured in the byproducts of a solar lifetime of nuclear fusion. These byproducts, known to us as the elements of the periodic table (such as carbon, nitrogen, and oxygen) make up the stuff of other suns, planets, and their inhabitants.


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Light Energy and Solar Energy are all a part produced by the sun.


Does chemical energy travel from the Sun to the Earth and get transformed into light energy by plants?

No. It is actually thermal energy from the sun that is transformed into food/chemical energy.


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Related questions

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the energy the sun gives us is called solar energy.


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The sun gives off heat, light, and radiation energy


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