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14 Cards in this Set
- Front
- Back
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What compound is the atmosphere of Mars primarily composed of?
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C02 (carbon dioxide)
-This causes the Greenhouse effect |
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What elements are jupiter and saturn's atmospheres composed of?
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Hydrogen and Helium
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What are Saturn's rings composed of?
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Millions of icy particles, rocks and dust
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Why do the rings of Jupiter Saturn and Uranus not form a moon? (see roche limit)
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-Tidal force is Greater than the gravitational force
-If it gets to close, the tides pull it apart |
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How do we know Io's core is hot?
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Volcanoes on Io's surface, caused by tidal heating
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What did the galileo orbiter measure that was evidence of an ocean of water in Europa?
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Fluctuations in Europa's Magnetic Feild
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What is Titan's rain probably composed of?
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Probably liquid Methane
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Who discovered Uranus and When?
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William Herschel in 1781
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What discrepancy did Adams and Leverrier use to predict the position of Neptune?
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Discrepancies in Uranus' orbit to detect Neptune
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What are the 3 Characteristics of a planet? And which one does Pluto not satisfy?
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1.Must orbit the Sun
2.Massive enough to be spherical 3. CLEARED IT"S ORBIT OF OTHER BODIES |
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Why would an asteroid impact cause extinction of dinosaurs, far away from the impact site
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Dust thrown into the atmosphere, blocking the sun, cooling the earth and killing planets at the bottom of the food chain
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Which meteor shower occurs on August 11th each year?
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Perseid Meteor Shower
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What causes planet oblateness
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High rotation rate+ Fluid Planetary structure
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What is Tidal Heating?
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Friction from tidal flexing
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