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8.8A CFA
By Ryan Engrav
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Last updated over 5 years ago
5 questions
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Question 1
1.
Question 2
2.
Question 3
3.
Question 4
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Question 5
5.
Whis statement best describes a nebula?
A mass of dust and ice that orbits a star in an elliptical pattern.
A ball of plasma that experiencs nuclear fusion in its core.
A system of billions of stars, gas, and dust held together by gravity.
A cloud f gas that is the birthplace of stars.
The universe has many different components. Which list places four components of the universe in the most likely order from least mass to most mass?
Nebula, planet, star, galaxy
Planet, star, galaxy, universe
Galaxy, star, planet, moon
Universe, star, nebula, moon
Which of these obervations of Sirius B is most likely accurate?
Sirius B is hotter and brighter than the sun.
Sirius B is cooler and less bright than the sun
Sirius B is hotter and and less bright than the sun
Sirius B has the same temperature and luminousity of the sun
Based on this diagram, which type of stars would belong to spectral class K and have the lowest luminosity?
Supergiants
Giants
White Dwarfs
Main Sequence
Which area of the diagram represents the stars classified as giants?
A
B
C
D