Hertzsprung-Russell Diagram

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Science
•
10th - 12th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What does color tell us about a star?
Back
Its relative temperature.
2.
FLASHCARD QUESTION
Front
What does luminosity tell us about a star?
Back
Its relative size.
3.
FLASHCARD QUESTION
Front
What does the 'Main sequence' represent on the Hertzsprung-Russell Diagram?
Back
A continuous and distinctive band of stars that appears on plots of stellar color versus brightness.
4.
FLASHCARD QUESTION
Front
What type of star has a surface temperature of 30,000°K and a luminosity of 10⁻²?
Back
White dwarf.
5.
FLASHCARD QUESTION
Front
What type of star has a surface temperature of 5,700°K and a luminosity of 1?
Back
Main sequence.
6.
FLASHCARD QUESTION
Front
What is the Hertzsprung-Russell Diagram used for?
Back
To classify stars based on their luminosity, color, temperature, and evolutionary stage.
7.
FLASHCARD QUESTION
Front
What are red giants?
Back
Stars that have expanded and cooled, resulting in a reddish appearance and high luminosity.
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