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Keplers laws (unit t
| Question | Answer |
|---|---|
| Keplers first law | law of elliptical orbits |
| Keplers secound law | law of equals |
| Keplers third law | law of periods |
| perihelion | the part of a planets orbit when it is closest to the sun |
| aphelion | the part of a planets orbit when it is farthest from the sun |
| where does a planet move fastest | perihelion |
| where does a planet move slowest | aphelion |