Heliocentric vs Geocentric Models
Flashcard
•
Science
•
11th Grade
•
Practice Problem
•
Hard
Lisa Jones
FREE Resource
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9 questions
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1.
FLASHCARD QUESTION
Front
A model of the universe where Earth is at the center. Earth-centered, historical model, replaced by heliocentric model. What is this model called?
Back
Geocentric
2.
FLASHCARD QUESTION
Front
A model of the universe where the sun is at the center. Sun-centered, modern model, replaced geocentric model. What is this model called?
Back
Heliocentric
3.
FLASHCARD QUESTION
Front
The action of moving around something in a path that takes a full circle. Involves a complete orbit. Takes place in a regular cycle. What is this called?
Back
Revolution
4.
FLASHCARD QUESTION
Front
Shaped like an oval or a flattened circle. In astronomy, planets’ orbits are this shape, not perfect circles. Related to planetary motion. Describes the shape of orbits. Different from a perfect circle. What is this term?
Back
Elliptical
5.
FLASHCARD QUESTION
Front
The curved paths that celestial objects follow as they move around larger objects due to gravity. Elliptical or circular paths. Governed by gravitational forces. What is this called?
Back
Orbit
6.
FLASHCARD QUESTION
Front
A well-supported explanation of a natural phenomenon based on a body of evidence. Based on repeated testing. Broad in scope. Predictive power. What is this called?
Back
Theory
7.
FLASHCARD QUESTION
Front
In the geocentric model, this is a small circular path that a planet follows while also moving along a larger circular orbit around Earth. Related to the geocentric model. Explains the apparent 'looping' or retrograde motion of planets. Part of Ptolemy’s explanation of planetary motion. What is this called?
Back
Epicycle
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