Universe Review '24
Flashcard
•
Physics
•
8th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a light year?
Back
A light year is a measure of distance, specifically the distance that light travels in one year.
2.
FLASHCARD QUESTION
Front
What is a supernova?
Back
A supernova is the explosion of a supergiant star that occurs after it creates iron, leading to the star's collapse.
3.
FLASHCARD QUESTION
Front
How far away is the closest star to Earth in light minutes?
Back
The closest star to Earth is approximately 8 light minutes away.
4.
FLASHCARD QUESTION
Front
What happens to galaxies when they collide?
Back
When galaxies collide, their structure gets distorted due to tidal effects, resulting in what are called peculiar galaxies.
5.
FLASHCARD QUESTION
Front
How do astronomers study distant stars?
Back
Astronomers study distant stars by collecting data with telescopes.
6.
FLASHCARD QUESTION
Front
What is the significance of a light year in astronomy?
Back
A light year helps astronomers measure vast distances in space, making it easier to understand the scale of the universe.
7.
FLASHCARD QUESTION
Front
What are peculiar galaxies?
Back
Peculiar galaxies are galaxies that have distorted structures due to gravitational interactions during collisions with other galaxies.
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