HR Diagram Practice
Flashcard
•
Science
•
8th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What is the HR Diagram?
Back
The HR Diagram (Hertzsprung-Russell Diagram) is a scatter plot that shows the relationship between the stars' absolute magnitudes or luminosities versus their stellar classifications or effective temperatures.
2.
FLASHCARD QUESTION
Front
What are White Dwarfs?
Back
White Dwarfs are small, dense stars that are the remnants of stars that have exhausted their nuclear fuel and shed their outer layers.
3.
FLASHCARD QUESTION
Front
What is the Main Sequence?
Back
The Main Sequence is a continuous and distinctive band of stars that appears on the HR Diagram, where stars spend most of their lifetime fusing hydrogen into helium.
4.
FLASHCARD QUESTION
Front
What are Supergiants?
Back
Supergiants are very large stars that are much brighter than the sun and have a short lifespan, often ending in supernova explosions.
5.
FLASHCARD QUESTION
Front
What are Giants?
Back
Giants are stars that have expanded and cooled after exhausting the hydrogen in their cores, and they are larger and brighter than main sequence stars.
6.
FLASHCARD QUESTION
Front
Which star group contains the smallest stars?
Back
White Dwarfs.
7.
FLASHCARD QUESTION
Front
Which of the following is NOT a star group found on a HR diagram?
Back
Black Holes.
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