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Science quiz 3
| Question | Answer |
|---|---|
| The heliocentric theory was first proposed by the astronomer | Copernicus |
| Copernicus believed the planetary motions were due to: | circular heliocentric orbits |
| What motion is responsible for producing a "day" upon the Earth? | rotation of the Earth |
| When considering different hypothesis usually the _____ scientific explanation which can account for all the _____ is the correct one. | simplest, information |
| Copernicus determined, for each planet, the approximate period of _____ required to orbit around the sun. | revolution |
| was the first scientist to use a telescope for astronomy | Galileo |
| Kepler demonstrated that as a planet revolves around the sun: | its speed and distance changes |
| 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. |
| The gravitational force between two objects will become _____ as their mass increases. | greater |
| The Law of Gravitation was mathematically defined by | Newton |
| The two major classes of telescopes are the _____ and the _____ telescope. | reflecting, refracting |
| Investigating energy waves other than light is usually accomplished by using a | radio telescope |
| 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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