GEOG 2050 Chapter : Chapter 1 -3 Exam1
Document Summary
Key concepts: milky way galaxy, solar system, speed of light, gravity, solar system formation, inner planets , sun, insolation, solar radiation, evolution of the atmosphere , solar radiation, fusion, solar wind. Universe formed ~ 13. 5 15 billion years ago: big bang theory. Milky way galaxy: oldest star ~ 13. 6 billion years, disk formed between 6. 5 + 10. 1 billion years ago. Speed of light = ~ 300,000 km/sec (186,000 miles/sec) Responsible for: formation of the solar system, orbits of planets, the moon"s orbit, tides in the ocean, and more. Inner planets: mercury, no atmosphere, 183-427 degrees c, venus, high co2 atmosphere, strong greenhouse, 460 degrees c, earth, atmosphere, ~14 degrees c (-89-57. 7 degrees c, mars, earth"s size, thin atmosphere of co2, -46 degrees c. Key concepts: inner plannets, sun, insolation, rotation, revolution, subsolar point, equilibruim, solar constant, seasons, axial parallelism, sphericy, tropics of cancer/capricorn, arctic/antarctic circles, solstice/equinox, midnight sun, axial tilt, incoming solar radiation.
