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- 1. Multiple Choice
Which star has a surface temperature most similar to the surface temperature of Alpha Centauri?
Polaris
Betelgeuse
Procyon B
Sirius
- 2. Multiple Choice
Which star is hotter, but less luminous, than Polaris?
Deneb
Aldebaran
Sirius
Pollux
- 3. Multiple Choice
Which two stars are most similar in luminosity?
Betelgeuse and Barnard's Star
Procyon B and Proxima Centauri
Polaris and the Sun
Alpha Centauri and Sirius
- 4. Multiple Choice
Compared the the Sun, the star Betelgeuse is
less luminous and warmer
less luminous and cooler
more luminous and warmer
more luminous and cooler
- 5. Multiple Choice
Which of the following are characteristic of the surface temperature and luminosity of some white dwarf stars?
Surface Temperature: 5,000 K Luminosity: 100
Surface Temperature: 5,000 K Luminosity: 0.001
Surface Temperature: 10,000 K Luminosity: 100
Surface Temperature: 10,000 K Luminosity: 0.001
- 6. Multiple Choice
Which star is more massive than our Sun but has a lower surface temperature?
40 Eridani B
Sirius
Aldebaran
Barnard's Star
- 7. Multiple Choice
For other stars in our galaxy that go through a similar life cycle to our Sun, which star is currently in the late stage of its life cycle?
Alpha Centauri
Procyon B
Bernard's Star
Polaris
- 8. Multiple Choice
Which star has a surface temperature most similar to the surface temperature of Alpha Centauri?
Polaris
Betelgeuse
Procyon B
Sirius
- 9. Multiple Choice
Which star is hotter, but less luminous, than Polaris?
Deneb
Aldebaran
Sirius
Pollux
- 10. Multiple Choice
Compared the the Sun, the star Betelgeuse is
less luminous and warmer
less luminous and cooler
more luminous and warmer
more luminous and cooler
- 11. Multiple Choice
What process produces large amounts of energy in a star by combining lighter elements into heavier elements?
Convection
Radiation
Radioactive Decay
Nuclear Fusion
- 12. Multiple Choice
A star in a galaxy has a surface temperature of 8,000 K and a luminosity of 10. Identify the stage and color of this star.
Super Giant and White
Main Sequence and Red
White Dwarf and White
Main Sequence and White
- 13. Multiple ChoiceThe category that contains the most stars is...Main SequenceSupergiantsGiants
- 14. Multiple ChoiceWhich category is our Sun located in?White DwarfsSupergiantsMain SequenceGiants
- 15. Multiple Choice
According to the attached diagram, what determines if a star becomes a Supergiant or a Giant?
How massive it is.
If it is on the main sequence or not.
The shape of the nebula.
- Answer choicesTagsAnswer choicesTags