Intro To Planetology.pdf - 1 Planetology A the study of the solar system the planets their moons B only places in the solar system that we can go to are

Intro To Planetology.pdf - 1 Planetology A the study of the...

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Unformatted text preview: 1. Planetology A. the study of the solar system & the planets & their moons B. only places in the solar system that we can go to are the moon & mars 2. Solar System A. 8 planets 3. Inner planets (terrestrial planets) first 4 planets A. terrestrial = solid body, earth-like body, called terrestrial planets because they have a rocky hard surface, we could actually walk on these B. Mercury a. Smallest of the planets, 1/3 the size of the earth b. In mythology, mercury is the messenger god, has wings on his ankles c. Moves the fastest (because it was closest to the sun) out of all of the planets, thats why the ancients called it the messenger d. Takes 88 days to go around the sun e. If youre closer to the sun youre going faster, otherwise you ll fall into the sun f. Isn t easy to see because its so close to the sun, we see it as either a morning or evening star C. Venus D. Earth a. 365 days E. Mars 4. Outer planets (Jovian planets, never going to these planets) A. never going to these planets, they're just giant balls of gas. Have a magnetosphere that is killer. B. Jupiter C. Saturn D. Uranus E. Neptune 5. Earth A. Measurements B. Diameter a. 8,000 miles C. Circumference a. 25,000 miles D. Mass a. 6 10²¹ Tons, don't need this info E. Components of the Earth F. Water a. covered with about ¾ of water b. Density of water=1.0 g/ml G. Surface rocks a. density=2-3 g/ml H. Earth a. Overall Density= 5.5 g/ml b. Average density that is higher than anything on the surface of the earth, this is because c. The rest of the density of earth is made up of heavy metals 6. When Earth First Formed A. Earth was a molten body 7. Differentiation- the heavy metals went to the middle and the lighter metals went to the top. Then the earth solidified, hardened. A. Differentiation a. separation based on property, in this case it is differentiation is based on density 8. Earth s Layers 9. Crust A. skin of the earth B. Places on the earth where crust is thinnest=ocean floor, where the ocean is really deep, only about 2 miles thick. Places on the earth where crust is thickest= top of a mountain 10. Mantel A. 80% of earth B. Volcanoes & Geysers a. Mantel stuff coming up C. Geyser- Hot spring, water boils up to the air 11. Outer Core (2 Parts) A. Outer Core a. Iron & Nickel b. Heavy metals, went to the outer core c. temperature- 4000 degrees Celsius d. Caused the iron & Nickel to become plastic , move like silly putty B. Inner Core (denser than the outer core) a. Uranium, Gold, Platinum (enough gold and platinum to cover the earth with about a foot thick) b. Why is gold so scarce? Because its all in the center of the earth, some of it has come up, but not much, we re never getting down to the core c. temp- 6,000 degrees Celsius̶Same temperature as the surface of the sun d. Heat from the core is coming from fission 12. Fission A. large atoms break into small atoms B. Occurs at the core of the earth C. The mass of Large atoms break up into small atoms with lower mass, mass disappears due to D. Large atoms̶̶>smaller atoms E. Mass. >>>> mass F. Einstein s Equation for Fisson G. E=ΜC² H. E= energy I. M=mass J. C= speed of light² 186,000 mi/sec K. 13. Fusion A. small atoms combine to form large atoms B. Occurs in the sun, Produces the energy of the sun C. a. hydrogen + hydrogen = Helium small atoms turning into Large atoms , literally just means the growth of small atoms, so they turn into large atoms swarmi D. Mass >>>>>>> Mass E. Hydrogen+Hyd> Helium MM F. Where did the mass go? G. converted into pure energy H. Every second our sun takes 500 million tons of hydrogen and converts it into 495 tons of Helium. Every second the sun is losing 5 million tons of mass. What kind of energy is the sun giving off? shittons. Eventually, sun is going to er run out of hydrogen, then its going to run out of helium, then I. Why doesn't fusion kill us? 14. Sun A. Giving off charged particles, electrons and ions B. moving around the sun C. 15. Solar Wind A. stream of charged particles moving at ¹/ᵗ the speed of light in all directions around the sun. B. the continuous flow of charged particles from the sun that permeates the solar system C. Every star does this, other stars give off "Stella wind", our sun gives off solar wind D. Northern lights are a result of a solar wind. When the solar wind comes through the magnetosphere, from the north and south where there are small openings 1. Magnetosphere A. ADD DEFINITION protects us from the solar wind, this is the reason were never going to mars, because its outside of the magnetosphere. B. Earth has a magnetosphere because it has a molten metallic core (not solid), and it spins. C. Keeps solar wind away from the earth, 30,000 miles D. Only thing that has made it outside the magnetosphere is the Apollo spacecraft. E. mars doesn't have a magnetosphere because the core has frozen (solid), doesn't have a molten core, we re never going to mars because its beyond the magnetosphere. 2. Density A. Density=mass/Volume B. Density compared to water examples C. dropping two balls into water, one is smaller but weighs more, dropping that one into the water it sinks right away, the other one floats. Why D. The smaller ball had a higher density than the water, the other ball s density was lower than the density of water E. Soda cans in water F. Some are floating some are sinking, The ones floating are diet the ones that are sinking are sweetened with high fructose corn syrup . Why is this happening? G. Sweetened sodas are sinking because the density of high fructose corn syrup is denser than water H. The one coke that floated with the diet cokes? Why? Maybe it had less sweetener 3. A. Magnetic sphere that ...
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