8 Topic 4: The Universe
Flashcard
•
Science
•
8th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What is Redshift?
Back
Redshift is the phenomenon where light from an object moving away from us shifts to longer wavelengths, making it appear redder.
2.
FLASHCARD QUESTION
Front
What is Blueshift?
Back
Blueshift is the phenomenon where light from an object moving toward us shifts to shorter wavelengths, making it appear bluer.
3.
FLASHCARD QUESTION
Front
What is a Protostar?
Back
A protostar is a stage in a star's life cycle that forms right after a nebula containing gas and dust collapses.
4.
FLASHCARD QUESTION
Front
What determines the life cycle of a star?
Back
The primary factor that determines the life cycle of a star is its mass.
5.
FLASHCARD QUESTION
Front
What does the Big Bang Theory explain?
Back
The Big Bang Theory explains how the universe was formed from a singularity and has been expanding ever since.
6.
FLASHCARD QUESTION
Front
What is a Spiral Galaxy?
Back
A spiral galaxy is characterized by a concentrated bulge of matter in the middle and arms that spiral outward.
7.
FLASHCARD QUESTION
Front
What is a Nebula?
Back
A nebula is a large cloud of gas and dust in space, often the birthplace of stars.
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