Test 1 Review (Astronomy)

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Science
•
9th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What process does the Sun use to produce energy?
Back
Nuclear fusion of hydrogen into helium.
2.
FLASHCARD QUESTION
Front
What does an eccentricity close to 0 indicate about a planet's orbit?
Back
The orbit is almost circular.
3.
FLASHCARD QUESTION
Front
What does Kepler’s Third Law state about planets and their orbits?
Back
A planet farther from the Sun takes longer to orbit.
4.
FLASHCARD QUESTION
Front
Which of the following is the smallest structure in space?
Back
Moon.
5.
FLASHCARD QUESTION
Front
How does energy travel outward from the Sun's core?
Back
Through the convective and radiative zones.
6.
FLASHCARD QUESTION
Front
What is the main component of the Sun's core?
Back
Hydrogen, which undergoes nuclear fusion.
7.
FLASHCARD QUESTION
Front
What is the significance of the photosphere in the Sun?
Back
It is the visible surface of the Sun from which light is emitted.
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