
Unit 7 Review
Authored by Hannah Schwieger
Science
8th Grade
Used 4+ times

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30 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
There are four groups of stars on the HR Diagram. About 90% of all stars are in the ________.
Supergiants
Giants
White dwarfs
Main sequence
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you rearrange the words to match the diagram correctly in terms of sizes in space?
Solar systems in the largest circle, then galaxies, followed by the universe in the smallest circle.
Universe in the largest circle, then galaxies, followed by the solar systems in the smallest circle.
Galaxies in the largest circle, then universe, followed by the solar systems in the smallest circle.
The diagram is already correct.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Analyze this HR Diagram. Which group of stars is considered to have a lower than average luminosity as well as a higher than average temperature?
Giants
Main Sequence
White Dwarfs
Supergiants
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A collection of dust and gas where stars can form is called a...
universe
nebula
black hole
supernova
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Our sun is located near the edge of a ______ galaxy, named the _______.
Spiral shaped; Milky Way
Spiral shaped; Solar System
Elliptical shaped; Milky Way
Elliptical shaped; Solar System
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Stars are classified on the HR Diagram by...
luminosity and brightness.
temperature and absolute magnitude (or luminosity).
temperature and apparent magnitude.
temperature and distance.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Stars radiate thermal energy through space by a process called _____ where the element _____ is converted into helium.
nuclear fusion; hydrogen
nuclear fusion; lithium
nuclear transfer; hydrogen
nuclear transfer; boron
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