Most astrophysicists agree that it's the fusion of hydrogen into helium.
There are a few other theories that are not widely accepted... Dr. Oliver K. Manuel's "Iron Sun" hypothesis, for example. But it's pretty generally agreed that it's fusion.
The conversion of a bit of the star's mass into energy as the star fuses lighter elements into heavier ones.
Radiant energy is exothermic energy. Fire is a chemical reaction that produces heat. This heat is released as a result of the exothermic chemical reaction.
Lowers the activation energy of a reaction, therefore speeding the reaction up.Catalysts speed up chemical reactions. They do not change the products or reactants of the reaction, and are not used up or consumed in the reaction. Biological catalysts are called enzymes. Catalysts lower the activation energy (or energy needed to start a reaction), and cause the reaction to occur more quickly.
Endothermic
Carter created the Department of Energy to reduce America's dependence on foreign energy.
No. One is chemical energy, the other is electrical energy.
The Sun fuses hydrogen to create helium which makes tremendous amounts of energy. Thus producing sunlight.
Energy, in the release of binding energy
It produces so much energy because of the nuclear fusion reaction that happens in the Sun's core every second. Nuclear fusion releases tremendous amounts of energy.
Heat rays
It is true that nuclear reaction produce huge amounts of energy by transforming tiny amounts of matter.
It is due to the annihilation of a small part of the nuclear masses involved
solar flares
Plutonium can be used in fuel rods for generation nuclear energy. Plutonium can also be used to create an atomic bomb. Simply bring enough plutonium together in a single contained pile, and the critical mass creates a chain reaction liberating nuclear energy through a fission reaction resulting in a tremendous explosion.
Relatively small amounts of energy are released or absorbed.
Nuclear fusion. Enormous pressure near the sun's center causes atoms of hydrogen to fuse together and form helium atoms releasing tremendous amounts of energy- put really simply. ALL stars use the same method to create heat and energy.
Solar Flares (Study Island)
An atomic bomb is a bomb that releases a tremendous amount of energy by initiating a nuclear fission chain reaction.