Keynote; ch. 13; exploring space

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Ch. 13; Astronomy, rocket, thrust, velocity, orbital velocity, satellite, vacuum, microgravity

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  • Keynote; ch. 13; exploring space

    1. 1. Science Notes: Ch. 13; Exploring Space
    2. 2. History of Space ExplorationFirst rockets built inChina in 1100ADBritish, 1800’s,“Rockets red glare”;War.Modern rocketsbegan in early 1900’s.Technology“popped” duringWWII.
    3. 3. Rocket FunctionRockets work by expelling gasses to push them up; This isThrust.Remember, velocity = speed w/ direction.Orbital velocity; The velocity a rocket needs in order to reachorbiting altitude around Earth. Rocket still affected by gravity& inertia.Escape velocity; The velocity a rocket needs to escape intospace = 40,200km/sec = 5mi/sec. Rocket escapes Earth’sgravitational pull.
    4. 4. Multistage Rocket Active Art
    5. 5. Space probes...
    6. 6. More space probes...
    7. 7. First space mission: Laika, Sputnik II, 1957; Earth Orbit.
    8. 8. More firsts in the Space RaceExplorer I; 1958; un-maned; NASA starts1961; Vostok I; Soviet Yuri Gagarin firstastronaut.1 month later; Freedom 7; Alan Shepard 1stfrom U.S.A.1962; Friendship 7; John Glen; first to orbitEarth.Apollo Missions; the U.S.A. program to landa person on the Moon.July, 1969; Apollo II spaceship; NeilArmstrong, Buzz Aldrin transfer to “TheEagle” and land on the Moon.
    9. 9. V
    10. 10. CW
    11. 11. C
    12. 12. BW
    13. 13. G
    14. 14. This is a Template!S

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