Term
| Kepler's 1st Law: The Law of Elipses |
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Definition
| The paths of planets around the sun are ellipses. |
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Term
| Kepler's 2nd Law: The Law of Areas |
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Definition
| A planet moves so that it's radius vector sweeps out in equal areas in equal times. |
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Term
| Kepler's 3rd Law: The Harmonic Law |
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Definition
-The ratio between the wquare of the time needed by a planet to make a revolution around the sun and the cube of it's average distance from the sun is the same for all planets.
-T^2/R^3
R= average radius of planet's orbit
T=period of tha planet and time for a revolution around the sun |
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Term
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Definition
-A force that is always directed toward asome particular piont.
-All central forces may produce eliptical paths. |
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