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"LMS Ch 27.2

Question	Answer
Which of the following statements best describes Ptolemaic theory?	The sun and the other planets revolve around the Earth.
Heliocentric means	sun-centered.
How did Ptolemy explain retrograde motion of the planets?	He said that planets moved in small circles called epicycles.
Kepler's first law of motion relates to the	shape of a planet's path around the sun.
The statement "equal areas are covered in equal amounts of time as an object orbits the sun" describes	the law of equal areas.
Scientists determined that Jupiter is 5.2 AU from the sun by	observing the time required for Jupiter to complete a single orbit.
Why was Isaac Newton's contribution to astronomy so important?	Newton discovered the force behind the movement of celestial bodies.
Which of the following forces causes the curve in a planet's orbit?	inertia, gravity, and eccentricity
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Earth’s atmosphere formed as volcanic eruptions released nitrogen,water vapor, sulfur dioxide, carbon dioxide, ammonia,	hydrogen, and methane
Water vapor in the atmosphere of early Earth cooled and condensed to form rain, which collected on Earth’s surface, creating the first	oceans.
Newton’s principle that a moving body will remain in motion and resist a change in speed or direction until an outside force acts upon it is called	inertia.
The solar system body that has a moon half its size, is characterized by an unusually elongated orbit, and has a thin, nitrogen atmosphere, is	Pluto.
On which two planets have massive storms called, respectively, the Great Red Spot and the Great Dark Spot existed?	Jupiter and Neptune
Known for its rings and bands, the least dense planet is	Saturn.
A gas giant with a distinctive blue-green color indicating the presence of methane in its helium and hydrogen atmosphere is	Uranus
Which of the following make it possible for Earth to support life?	water, oxygen, temperature
Which inner planets have almost the same size, mass, and density?	Venus and Earth
Which planets show evidence of heavy volcanic activity?	Mars and Venus

Created by: tbfreema on 2009-12-06

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"LMS Ch 27.2