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ESS102H1 (41)
Midterm

Midterm Study Notes

13 Pages
179 Views

Department
Earth Sciences
Course Code
ESS102H1
Professor
Charly Bank

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Description
Monday March 1212Introductory GeologyC BanksStudy PrepGeology of the Solar SystemThe Sun109 times the diameter of the Earth333000 times the mass of the EarthBurns hydrogen to heliumEmc2 means small amount of mass converts into a lot of energyTemperature at surface is 5800 KAt the center the temperature is 15 million KConvection causes surface granulation cellsSunspots10000 km acrossRed center with an orange ringLinked to intense magnetic fieldsOn an 11year cycleSolar windFast moving 1 million kmhr gas in corona is continually escapingDuring sunspot maximum coronal mass ejections space weatherKeplers 3 LawsOrbit of planet is an ellipse with Sun at one focusLine joining planet and Sun sweeps out equal areas in equal increments of timePlanets sidereal period increases with semimajor axisIe velocity of a body in orbit is determined by its distanceSpace station 37 tons 390 km above ea Level 91 minGeostationary satellite 35 786 km altitude 1 dayMoon 385 000 km 273 daysNewtons Laws1 Inertia2 Fma3 ActionreactionLaw of gravitation2 masses attract one anotherForceG m Mr2TidesWy do we experience 2 tides per dayExploration of Solar SystemEarthbased telescope vs Hubble Space telescopeImages with false coloursSatellite remote sensing using radar wavesRough terrain reflects more energy creates bright halosMonday March 1212Introductory GeologyC BanksStudy PrepLanders and roversHumans The Inner Terrestrial Planets and Their MoonsMercurySmall 4 RE and heavily cratered similar to our moonAlmost no atmosphere80C at night 460C during dayVenusSimilar to Earth in sizeThick dense CO2 Atmosphere immense greenhouse effect causing high surface temperatures 450CVaried terrain high and low areasEvidence for past volcanic activity lava flowsMarsHalf the size of earthRed colour due to windblown dustOlympus Mons a basaltic shield volcano is largest in solar systemValles Marineris a 400 km long canyonWeathering channels and depositional point bar structures indicate that water once flowed thereIce caps at poles grow during winterEarth and its MoonFall into Suns habitable zone ie liquid water on planet possibleParameters of Earths orbitPerihelion and aphelionPrecessionNutationStructure of MoonLight colored cratered highlands4 Gyr anorthosite feldspar richLowlying dark colored maria3825 Gyr basalt filled cratersMoon is spiraling away from Earth at 38 cmyrEarth day is getting longer by resultEnergy loss due to tidal frictionFormation of moon likely by a huge asteroid impact on EarthGas GiantsLarge size gas rich all with ringsJupiterLargest planet 11 Re 318 Me 25 mass of other planets
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