Chapter 16

Chapter 16 - Chapter 16 The suns energy is created by...

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Chapter 16 The sun’s energy is created by thermonuclear reactions in the core Luminosity – the total amount of energy emitted by the Sun each second What keeps Sun so hot? Kelvin-Helmholtz contraction: the weight of its outer layers cause it to contract and compress its inner gases. These gases then heat up. Thus it is the gravitational contraction Einstein’s theory of relativity revealed answer. It explained a small amount of matter can release a large amount of energy Inspired other scientists to realize nuclear reactions Hydrogen fusion – process of converting hydrogen into helium thermonuclear fusion – the fusing together of nuclei Proton-proton chain - mass can be destroyed if converted into energy CNO cycle – A theoretical model of the Sun shows how energy gets from its center to its surface Sun is in hydrostatic and thermal equilibrium because not exploding, collapsing, heating up, or cooling hydrostatic equilibrium - thermal equilibrium - How does energy transport from center to surface? 3 possible methods: conduction,
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Chapter 16 - Chapter 16 The suns energy is created by...

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