Components of the Universe

Flashcard
•
Science
•
8th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a nebula?
Back
A large cloud of gas and dust in interstellar space; the predecessor to stars.
2.
FLASHCARD QUESTION
Front
List the components of the universe from smallest to largest.
Back
Planets, stars, nebulae, galaxies.
3.
FLASHCARD QUESTION
Front
What keeps Earth in its path around the sun?
Back
The gravitational attraction between the sun and Earth.
4.
FLASHCARD QUESTION
Front
What happens to stars as we move to the left on the Hertzsprung-Russell diagram?
Back
Stars get hotter.
5.
FLASHCARD QUESTION
Front
How is our sun classified compared to other stars?
Back
Medium size with medium temperature.
6.
FLASHCARD QUESTION
Front
What is a galaxy?
Back
A massive system that contains stars, stellar remnants, interstellar gas, dust, and dark matter, bound together by gravity.
7.
FLASHCARD QUESTION
Front
Define a black hole.
Back
A region of space where the gravitational pull is so strong that nothing, not even light, can escape from it.
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