Unit 4 Flashcardizz Review: The Universe
Flashcard
•
Science
•
8th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What are the characteristics of the MOST luminous stars?
Back
The MOST luminous stars are large and hot.
2.
FLASHCARD QUESTION
Front
What is the difference between a Law and a Theory in science?
Back
A Law is a fact, while a Theory is reasoning based on evidence.
3.
FLASHCARD QUESTION
Front
What do we call the force of gravity pulling down on an object?
Back
Weight.
4.
FLASHCARD QUESTION
Front
Which type of star has a high temperature and a high luminosity?
Back
Blue Giant.
5.
FLASHCARD QUESTION
Front
Is the surface temperature of white dwarf stars higher or lower than red super giants?
Back
Higher.
6.
FLASHCARD QUESTION
Front
What is luminosity in the context of stars?
Back
Luminosity is the total amount of energy emitted by a star per unit of time.
7.
FLASHCARD QUESTION
Front
What is the relationship between a star's size and its luminosity?
Back
Generally, larger stars are more luminous than smaller stars.
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