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| The heliocentric theory was first proposed by the astronomer | Copernicus
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| Copernicus believed the planetary motions were due to: | circular heliocentric orbits
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| What motion is responsible for producing a "day" upon the Earth? | rotation of the Earth
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| When considering different hypothesis usually the _____ scientific explanation which can account for all the _____ is the correct one. | simplest, information
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| Copernicus determined, for each planet, the approximate period of _____ required to orbit around the sun. | revolution
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| was the first scientist to use a telescope for astronomy | Galileo
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| Kepler demonstrated that as a planet revolves around the sun: | its speed and distance changes
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| Why did it take Kepler so many extra years to determine the elliptical orbits of the planets? | 1.He presumed Copernicus was correct.
2.He inferred the orbits were circular.
3.Incorrect prior knowledge can delay good reasoning.
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| The gravitational force between two objects will become _____ as their mass increases. | greater
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| The Law of Gravitation was mathematically defined by | Newton
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| The two major classes of telescopes are the _____ and the _____ telescope. | reflecting,
refracting
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| Investigating energy waves other than light is usually accomplished by using a | radio telescope
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| Many people would not accept the heliocentric theory because: | 1.people had come to accept the idea that the Earth was the center of the universe.
2.the treatise claimed the Earth was not at the center of the universe
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Created by:
Tluff