Stars - The Universe
star
star
star
star
star
Last updated over 5 years ago
25 questions
2
What is spectroscopy?
What is spectroscopy?
1
Which stars emit blue light?
Which stars emit blue light?
1
Which stars emit red light?
Which stars emit red light?
3
What do the dark (black) lines on the spectrum represent when looking at a star?
Explain clearly.
What do the dark (black) lines on the spectrum represent when looking at a star?
Explain clearly.
1
What is the most abundant element in stars?
What is the most abundant element in stars?
1
What is the approximate temperature of the sun's surface?
What is the approximate temperature of the sun's surface?
3
Explain why we don't see any green stars.
Explain why we don't see any green stars.
3
What colour is our sun? Explain.
What colour is our sun? Explain.
2
What does a stars luminosity depend on?
What does a stars luminosity depend on?
3
Why is the Hertzsprung-Russell (H-R) diagram so important?
Why is the Hertzsprung-Russell (H-R) diagram so important?
2
Why are higher massed stars generally hotter?
Why are higher massed stars generally hotter?
1
What are the rarest type of stars?
What are the rarest type of stars?
1
How does the mass of a star affect it's life time?
How does the mass of a star affect it's life time?
4
What is a red dwarf? What happens to them at the end of their life cycle?
What is a red dwarf? What happens to them at the end of their life cycle?
1
What is the approximate lifespan of the sun?
What is the approximate lifespan of the sun?
1
What is happening to the sun's brightness?
What is happening to the sun's brightness?
3
What are some of the changes the sun will undergo when it becomes a Red Giant?
What are some of the changes the sun will undergo when it becomes a Red Giant?
3
What is the last phase of the sun's life cycle? Explain.
What is the last phase of the sun's life cycle? Explain.
5
What affect will the changes occurring in the sun have on the Earth? Explain.
What affect will the changes occurring in the sun have on the Earth? Explain.
2
Explain why Silicon fusing is a problem for stars.
Explain why Silicon fusing is a problem for stars.
2
Why do higher mass stars have a shorter lifespan? Explain.
Why do higher mass stars have a shorter lifespan? Explain.
2
What affect does iron fusion have on a star?
What affect does iron fusion have on a star?
2
What can be formed when a larger massed star's core collapses?
What can be formed when a larger massed star's core collapses?
2
What is a supernova?
What is a supernova?
2
How are most heavy elements in the Universe created?
How are most heavy elements in the Universe created?