Term
| How did Copernicus view Ptolemaic's system? |
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Definition
| inaccurate and overly complex |
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Term
| what three things did copernicus provide an explanation for in his simpler system? |
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Definition
| lunar, solar, and planetary motion |
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Term
| Who provided an explanation for perfect circular motion? |
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Definition
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Term
| How did copernicus explain irregular motions? |
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Definition
| he retained the idea of tiny epicycles on orbits |
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Term
| Copernicus adopted the theory of perfect circular motion from who? |
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Definition
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Term
| The copernican system said that the moon went around the earth, but also had several other what? |
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Definition
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Term
| Copernicus said that the epicycles are designed to do what? |
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Definition
| represent the moon's varying patterns but NOT designed to explain retrograde motion |
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Term
| how long does it take Mercury to go around the sun? Venus? Earth? Mars? Jupiter? Saturn? - What does this conclude? |
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Definition
Mercury- 88 days
Venus- 100 ish days
Earth- 365 days
Mars- 1.88 years
Jupiter- 12 years
Saturn- 30 years
Conclusion: Planets closer to the sun move more rapidly |
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Term
| How do we explain the retrograde motion of mars with the copernican system of mars? |
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Definition
| it has to do with the relative motions of the planets - and Earth's more rapid motion makes Mars appear to go backwards (Wizard of Oz example) |
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Term
| Although Tycho could appreciate the simplicity of the Copernican system, what couldn't he accept? |
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Definition
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Term
| How did Tycho view the Copernican system (Religiously) |
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Definition
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Term
| a false science that uses planets to predict the future |
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Definition
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Term
| physical science of the motion of the planets based on reason and empirical evidence |
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Definition
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Term
| Tycho's theory merged what systems? |
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Definition
| Ptolemy and Copernicus theory |
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Term
| What three things did Tycho's theory include? |
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Definition
| unmoving earth, sun and moon orbit the earth, planets orbit the sun |
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Term
| What proof do we have that Ptolemaic's model cannot be correct? |
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Definition
| Venus would always appear to be a new moon |
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Term
| What three things prove that the Earth is a sphere? |
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Definition
1. We have the shadow of the Earth on the moon is a sphere
2. When you look towards the horizon you first see the top of the ship, then a little more, then more, then the whole object appears.
3. Circumnavigation |
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Term
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Definition
| going around the globe in any direction and you will come back to the same point |
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Term
| Johannes Kepler rejects what idea? |
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Definition
| perfect circular motion following study of Mars |
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Term
| what three laws did Kepler discover? |
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Definition
1. Elliptical motion
2. Equal areas
3. Period 2 = Distance 3 |
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Term
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Definition
| planets revolve around the sun in an elliptic motion |
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Term
| Kepler's equal areas law said what? |
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Definition
| objects closer to the sun move faster |
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Term
| which system is still accepted today? |
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Definition
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