GEO 121 1st Edition Lecture 11 Outline of Last Lecture I. Exam DayOutline of Current Lecture II. GalaxyIII. Solar SystemIV. GravityV. Planeta. Terrestrialb. GasVI. Fusiona. ThermonuclearVII. Solar WindsVIII. AtmosphereIX. BarometerCurrent LectureGalaxyLike an enormous island in the universeAn almost incomprehensible cluster of stars, dust, and gases surrounded by spaceSolar SystemAll of the heavenly bodies surrounding a particular star due to the stars' dominant mass and gravityGravityThe attractive force that one body has for anotherPlanetA celestial body in orbit around the sun with sufficient gravitational attraction to overcome rigid body forces and assume a nearly spherical shape and has cleared the neighborhood around its orbitTerrestrial PlanetoComposed of rock and metallic materialsoMercury, Venus, Earth, and MarsGas PlanetsoAlso known as giant planetsThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.oComposed of lighter ices, liquids, and gasesoNo solid surface on which to walkoJupiter, Saturn, Uranus, Neptune Fusion ReactionsThermonuclearoThe fusing together of 2 hydrogen atoms to create one helium atomoThis process releases tremendous amounts of energy Solar WindsStreams of hot ions travelling outward from the sunAtmosphereBlanket of air, composed of various gases, that envelopes EarthBarometerMeasures Pressureo29.92 inches of mercury, 1013 millibars, 14.7
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