Podcast
Questions and Answers
What will happen to the core of the sun when the hydrogen supply runs out?
What will happen to the core of the sun when the hydrogen supply runs out?
- It will remain unchanged in size and temperature
- It will expand and its temperature will decrease
- It will collapse and turn into a black hole
- It will shrink and its temperature will increase (correct)
What is the next phase of the sun after the core has mostly helium with a thin layer of hydrogen outside?
What is the next phase of the sun after the core has mostly helium with a thin layer of hydrogen outside?
- Neutron star
- Red Giant star (correct)
- Black Dwarf star
- White Dwarf star
What happens to the sun's temperature when the core shrinks due to the falling reaction rate?
What happens to the sun's temperature when the core shrinks due to the falling reaction rate?
- It remains constant
- It increases (correct)
- It fluctuates
- It decreases
What temperature is needed for helium to 'burn' and produce carbon?
What temperature is needed for helium to 'burn' and produce carbon?
What happens to low mass stars when they cannot reach the temperature needed for carbon fusion?
What happens to low mass stars when they cannot reach the temperature needed for carbon fusion?
What is the eventual fate of the earth as the sun becomes a Red Giant star?
What is the eventual fate of the earth as the sun becomes a Red Giant star?
What does the reaction rate falling cause in the core of low mass stars?
What does the reaction rate falling cause in the core of low mass stars?
What happens when helium is depleted in the sun's core and its reaction rate falls?
What happens when helium is depleted in the sun's core and its reaction rate falls?
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