Structure of the Universe Unit Test Review

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Science
•
7th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What type of star is the sun?
Back
The sun is a Main Sequence Star.
2.
FLASHCARD QUESTION
Front
What does the red-shift of light emitted by stars tell us about our universe?
Back
The red-shift indicates that the universe is expanding.
3.
FLASHCARD QUESTION
Front
What term do we use to describe the brightness of a star?
Back
The brightness of a star is referred to as Luminosity.
4.
FLASHCARD QUESTION
Front
What is a characteristic of a star?
Back
A star is made of plasma and does not have a solid surface.
5.
FLASHCARD QUESTION
Front
Where are the majority of asteroids in the Solar System found?
Back
The majority of asteroids are found in the Kuiper belt at the outside edge of the solar system.
6.
FLASHCARD QUESTION
Front
What is the process by which a star 'burns' hydrogen to produce light?
Back
This process is called nuclear fusion.
7.
FLASHCARD QUESTION
Front
What is the main component of a star's composition?
Back
Stars are primarily composed of hydrogen.
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