
Stars & Constellations Test

Flashcard
•
Science
•
9th - 12th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the HR Diagram?
Back
The Hertzsprung-Russell Diagram (HR Diagram) is a scatter plot of stars showing the relationship between their absolute magnitudes or luminosities versus their stellar classifications or effective temperatures.
2.
FLASHCARD QUESTION
Front
What happens to a star's luminosity as its size increases?
Back
As the size of a star increases, its luminosity also increases.
3.
FLASHCARD QUESTION
Front
What is Absolute (magnitude) brightness?
Back
Absolute brightness is the brightness of a star at a standard distance of 10 parsecs, allowing for a comparison of the true brightness of stars.
4.
FLASHCARD QUESTION
Front
What are the characteristics of blue giants?
Back
Blue giants are hot and bright stars, typically much larger than the Sun.
5.
FLASHCARD QUESTION
Front
What will happen to the Sun in the future?
Back
The Sun will eventually become a red giant and then a white dwarf.
6.
FLASHCARD QUESTION
Front
What type of stars can become black holes?
Back
Only the largest supermassive stars at the end of their life cycles can become black holes.
7.
FLASHCARD QUESTION
Front
What is the difference between apparent brightness and absolute brightness?
Back
Apparent brightness is how bright a star appears from Earth, while absolute brightness is the intrinsic brightness of a star at a standard distance.
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