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Chapter Two Notes

Chapter Two Notes. Time Zones. Earth: A unique Planet. Oblate Spheroid. Interior of the Earth. Atmosphere Hydrosphere Lithosphere Crust Mantle Outer Core Inner Core. Gravity and Mass. Rotation. Spin Day 24 hours 1000 mi/ hr at equator 600 mi/ hr in New Jersey

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Chapter Two Notes

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  1. Chapter Two Notes Time Zones

  2. Earth: A unique Planet

  3. Oblate Spheroid

  4. Interior of the Earth • Atmosphere • Hydrosphere • Lithosphere • Crust • Mantle • Outer Core • Inner Core

  5. Gravity and Mass

  6. Rotation • Spin • Day • 24 hours • 1000 mi/hr at equator • 600 mi/hr in New Jersey • 0 mi/hr at poles • ccw direction • Move towards the east • causes day & night

  7. Revolution • Orbit • Year • 365 ¼ days • 18.5 mi/sec • Ellipse orbit

  8. Seasons • Caused by • 23°tilt of the Earth • Revolution of the Earth

  9. Seasons September 21 Dec 21 June 21 March 21

  10. Why is it hotter in the summer?

  11. Why is there a temperature Lag Time?

  12. Time Zones

  13. Time Zones

  14. Time Zones • Why do time zones follow state lines? • Why do time zone borders go around cities?

  15. International Date Line • If you travel westward all around the world, could you come back yesterday?

  16. Universal Time (UT) • Greenwich Time • Zulu Time • Who would need to use a world standard time?

  17. Orbit • Gravity • force to pull object inward • Inertia • object wants to go straight At 250 miles up the space station needs to go 17,000 miles/hour.

  18. Satellite Orbits

  19. Will stuff stay in orbit forever?

  20. Geosynchronous Orbit • Geostationary Orbit • Above the equator • 21,500 miles up • Always above the same spot • It revolves around the Earth in exactly 24 hours • What type of satellites need to be in this orbit?

  21. Geosynchronous Orbit

  22. Global Positioning System (GPS)

  23. Time to come home.

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