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Nuclear fusion. Mainly, converting hydrogen-1 to helium-4.
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∙ 9y ago
Wiki User
∙ 9y agoNuclear fusion.
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What energy powers the star throughout its life?
Nuclear fusion. Mainly the conversion of hydrogen-1 into helium-4; later in a star's life, helium-4 is converted into heavier isotopes.
What is the difference between a human lifes cycle to a stars life?
There are fundamental differences and similarities between a solar versus human life cycle. As in humans, stars are born and they will die. Stars produce energy. Both humans and suns produce energy, but by different means. Humans produce our energy through chemical respiration, a combustion reaction. Stars however use nuclear fusion. Another chief difference is that human life can be measured at most in decades or a century while stars can live for billions of years, and even longer after their "deaths" in their new forms as dwarfs and black holes.
What is the relationship with mass and the end stages of stars?
As stars burn, they shed matter, becoming less massive slowly throughout their life cycle. This reduction in mass necessarily lessens their gravity, causing the stars' diameter to increase. So, many end-stage stars will be huge and bloated. Massive red giant stars are examples of this.
When a Stars nuclear energy runs out and dies a star can die in many ways a is one way a star might die and it can trigger the beginning of a new stars life cycle?
Supernova
How is the sun linked to nuclear energy?
The sun, like all stars, gets its energy from nuclear fusion. The Earth is only habitable for life because of the sun's radiant energy which reaches us. So we all depend on nuclear energy.
What energy powers a star through its life?
Nuclear fusion energy powers the stars. The process is mainly converting hydrogen-1 into helium-4, and to a lesser extent, converting helium-4 into heavier elements.
What energy powers the star throughout its life?
Nuclear fusion. Mainly the conversion of hydrogen-1 into helium-4; later in a star's life, helium-4 is converted into heavier isotopes.
What provides the energy that powers life?
Carbon
The length of a stars life cycle?
That would be its size. Bigger stars live shorter lives because they use up energy faster, while smaller stars live longer because they don't use up as much energy.
What is the difference between a human lifes cycle to a stars life?
There are fundamental differences and similarities between a solar versus human life cycle. As in humans, stars are born and they will die. Stars produce energy. Both humans and suns produce energy, but by different means. Humans produce our energy through chemical respiration, a combustion reaction. Stars however use nuclear fusion. Another chief difference is that human life can be measured at most in decades or a century while stars can live for billions of years, and even longer after their "deaths" in their new forms as dwarfs and black holes.
What is the relationship with mass and the end stages of stars?
As stars burn, they shed matter, becoming less massive slowly throughout their life cycle. This reduction in mass necessarily lessens their gravity, causing the stars' diameter to increase. So, many end-stage stars will be huge and bloated. Massive red giant stars are examples of this.
When a Stars nuclear energy runs out and dies a star can die in many ways a is one way a star might die and it can trigger the beginning of a new stars life cycle?
Supernova
How is energy linked to the sun?
The sun, like all stars, gets its energy from nuclear fusion. The Earth is only habitable for life because of the sun's radiant energy which reaches us. So we all depend on nuclear energy.
How does the protostar stage of a stars life cycle compare with the main sequence stage?
A protostar generates energy by friction whereas a main sequence star generates energy by fusion.
How is the sun linked to nuclear energy?
The sun, like all stars, gets its energy from nuclear fusion. The Earth is only habitable for life because of the sun's radiant energy which reaches us. So we all depend on nuclear energy.
Which kind of process supplies the energy for the stars?
The process that supplies the energy for the stars is nuclear fusion. Nuclear fusion is a process in which atomic nuclei combine to form a heavier nucleus, releasing a large amount of energy in the process. In stars, the fusion of hydrogen atoms into helium is the primary source of energy. Under the intense heat and pressure of a star's core, hydrogen atoms are fused together to form helium, releasing a tremendous amount of energy in the form of light and heat. This process is what allows stars to shine and provides the energy necessary to sustain life on Earth.
When do stars burn out?
Simply stated, stars burn out when they run out of fuel. Stars fuse lighter nuclei into heaver nuclei, and they will turn hydrogen into helium, and then turn helium into heavier elements toward the end of their life. Through what is called stellar nucleosynthesis, fusion continues to create heavier elements. And as the stars ages (stellar evolution), it will eventually reach a point where it is forming iron. This is where things get difficult for the star.All the fusion reactions that create the elements up through iron release energy. Fusion reactions that create the trans-iron elements require energy to be put into the reaction. Where does this energy come from? Let's review the idea that the massive gravity of stars is always trying to cause them to collapse in on themselves. The energy released in fusion forces the material of the star outward, and these two forces struggle in equilibrium throughout the life of the star.At the end of a star's life, if the star is sufficiently large, when it collapses because it is running out of fuel, it will supply enough energy in the collapse to cause the fusion of elements heavier than iron, and this is the supernova event. A star of insufficient mass will simply collapse and end up a white dwarf. Larger stars might go nova and end up as a white dwarf, a neutron star, or as a black hole (for the really big stars).
