What is Kepler's First Law?
Kepler's Laws Review

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Science
•
10th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Kepler's First Law states that planets move in elliptical orbits with the Sun at one of the foci.
2.
FLASHCARD QUESTION
Front
What shape do planets orbit the Sun in?
Back
Planets orbit the Sun in an elliptical shape.
3.
FLASHCARD QUESTION
Front
What does eccentricity measure in an orbit?
Back
Eccentricity measures how elliptical an orbit is, indicating the deviation from a perfect circle.
4.
FLASHCARD QUESTION
Front
What is Kepler's Second Law?
Back
Kepler's Second Law states that a line segment joining a planet and the Sun sweeps out equal areas during equal intervals of time, meaning planets move faster when closer to the Sun.
5.
FLASHCARD QUESTION
Front
What is the definition of perihelion?
Back
Perihelion is the point in the orbit of a planet where it is closest to the Sun.
6.
FLASHCARD QUESTION
Front
What is the definition of aphelion?
Back
Aphelion is the point in the orbit of a planet where it is farthest from the Sun.
7.
FLASHCARD QUESTION
Front
How does the speed of a planet change in its orbit?
Back
A planet moves faster in its orbit when it is closer to the Sun and slower when it is farther away.
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