Astronomy

profilerbecca29

 

In Chapter 2 you learned about the old geocentric model of the universe and the development of the heliocentric model.  For this assignment I would like you to answer the following questions.  

1.  Write a paragraph describing the geocentric  model of the solar system--include information about what evidence there is for it and what evidence there against it (i.e. the evidence that supports the heliocentric model). 

2.  Write a paragraph describing the various contributions to the heliocentric model of the solar system by these astronomers: Nicolas Copernicus, Tycho Brahe, and Galileo Galilei.  Each one had several contributions so be as detailed as possible.

3.  Write a paragraph describing Johannes Kepler's contributions to the heliocentric model of the solar system--describe each of his three laws of planetary motion.  For the 2nd & 3rd law provide some elaboration (for the 2nd law what is its implication for planetary motion and give an example of how is third law works with 1-2 planets in the solar system)

4.  Write a paragraph-Explain how Isaac Newton uses his laws of motion and the law of gravity to explain how planets orbit the sun in the heliocentric model (basically explain how a planet's orbit works using these laws).  I don't necessarily want a repeat of what each law is, rather an explanation of how/why planets orbit the Sun using his laws of motion & law of gravity. 

Each answer should be about a paragraph in length.  Make sure to answer the questions in your own words--I'm not looking for a word for word explanation from the book or the bullet points at the end of the chapter.

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