How does a main sequence star get its energy?

Answer 1

Gravity. The star collapses until it reaches a temperature and pressure to ignite fusion. The pressure generated by the fusion opposes gravity and holds up the star until it runs out of fuel. This cycle can repeat until all that is left is nickel-iron, which cannot fuse. If the star is large enough, gravity can turn the burned out star into a black hole.

Answer 2

Most main sequence stars, including sun, produce heat and light by smashing atoms together to create explosions. Eventually, when the atoms continue to combine, they become too big to combine, and the star dies out. Then, it kind of implodes, and the friction of it becoming too dense makes it expand greatly past its original size, only temporarily. Shortly after, it finally explodes.

Answer 3

It is through nuclear fusion that a star generates energy. We see hydrogen fused to make helium, then heavier nuclei are produced. A tremendous amount of energy is released as these nuclear reactions are exothermic. The term for the different fusion reactions we see in stars is stellar nucleosynthesis. Links can be found below.

Answer 4

atomic fusion. With the smallest of stars this is hydrogen fusion into Helium. As the mass and or temperature of the star increases this progressively includes all fusion processes up to and including the creation of Iron.

Answer 5

In the sun, hydrogen nuclei (protons) are joining to make helium and this releases energy as heat. In larger stars, and when stars get older and become red giants, or supernovas occur, fusion can progress further and produce heavier elements, which is presumably how the earth was formed. It did not come from the sun because the sun is still in the first fusion stage as said before, and not producing heavy elements.

Answer 6

nuclear fission.

thats the source that makes it burn for all its life apart from the end of it but its the best answer your gonna get.

science made English!

p.s.....

lol.

Answer 7

Stars produce energy by nuclear fusion. In this process, called stellar nucleosynthesis, smaller, lighter nuclei are fused to create heavier nuclei. The process is exothermic, and heat is released on a massive scale. Most stars are burning hydrogen to create hydrogen, but later in life these stars will create even heavier elements up through iron.

Answer 8

Stars use a process called nuclear fusion to produce energy. This is done by joining hydrogen molecules at extreme pressure, forming helium and energy.

Answer 9

A main sequence star is powered by hydrogen fusion to helium.

Answer 10

By gaining mass which it does naturally over time. In short,It can become a giant star by getting older.