Thursday
December 18, 2014

Homework Help: Science

Posted by Tyler on Thursday, September 4, 2008 at 7:14pm.

Have I matched the right Scientists with these famous sayings:

Scientists: Ptolemy, Kepler, Copernicus, Newton, Galileo, Brahe & Hubble.

1)"I've finally worked out an explanation as to why planets orbit the sun and moons orbit planets. It is gravity that keeps an object in orbit! " I believe the scientist would be Newton
2)"The Earth is the center of the universe, and all of the planets & stars orbit our planet My theory predicts the motion of the planets better than any other theory of my day." (would this be Ptolemy or Kepler--I think Ptolemy)

3) It appears the Milky Way has neighbors. I know many of you think our galaxy is the only one, but it looks like that's just not so. This means the universe is a lot bigger than we thought. --I believe the Scientist is Galileo

4.) I prefer the theory of the sun-centered universe over other theories. The telescope has helped me to discover that the planets are not just dots of light, but physical bodies like the Earth. --I believe the Scientist Hubble.

5) After several years of precise observations, I conclude that our universe is Earth-centered. The sun and the moon revolve around the Earth, while the other planets revolve around the sun. (is this Kepler or Ptolemy I think Kepler)
6) For centuries people have been thinking that the Earth is at the universe's center,but I'm certain that the sun is at its center. I am certain that the planets orbit the sun.
---I believe Copernicus was the Scientist who said this.

7) I do not agree with my mentor's theory that the sun revolves around the Earth. I have used his precise data to propose another theory in which all of the planets revolve around the sun in elliptical orbits. --Is the Scientist that said this Brahe?

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