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Tuesday 9/6

Tuesday 9/6. Pass your homework in 2 stacks: 1) Stapled Section Reviews 2) Plasticity Activity Questions 2) Quiz. 2.2 Movements of Earth. Rotation vs. Revolution. Rotation: Spinning on axis Examples ice skater in a spin Top or dradle spinning. Revolution: movement around a set point

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Tuesday 9/6

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  1. Tuesday 9/6 • Pass your homework in 2 stacks: 1) Stapled Section Reviews 2) Plasticity Activity Questions 2) Quiz

  2. 2.2 Movements of Earth

  3. Rotation vs. Revolution Rotation: Spinning on axis Examples • ice skater in a spin • Top or dradle spinning

  4. Revolution: movement around a set point • Earth’s revolution around the sun results in seasons

  5. Journal #1 For the terms Rotation and Revolution. How are they similar? How are they different?

  6. Perihelion: When Earth is the closest to the sun. • Aphelion: When Earth is the furthest away from the sun.

  7. Journal #2 What causes seasons?

  8. Journal #2 What causes seasons? Revolution around the sun and the change in angle that the sun’s ray’s strike earth.

  9. Seasons The angle at which the sun’s rays strike the surface of the earth changes as the earth orbits around the sun.

  10. We experience Summer in the Northern Hemisphere when the Earth is on that part of its orbit where the Northern Hemisphere is oriented more toward the Sun • the rays of the Sun strike the ground more directly

  11. Precession • The direction that Earth’s axis points slowly changes in a circular motion.

  12. 2.3 Artificial Satellites • Satellite: an object in orbit around another object Journal #3 List a couple of examples of Satellites

  13. 2.3 Artificial Satellites • Satellite: an object in orbit around another object • The moon is a satellite of earth • Artificial Satellites: man made objects that are launched into to space

  14. Journal # 4 • List as many uses for satellites that you can think of.

  15. Uses of artificial satellites • Meteorological - weather information • Communication - radio, phone, and tv signals • Navigation- GPS (global positioning systems) • Scientific

  16. Orbits of Satellites • Geosynchrous Orbit: Rotate in the direction of Earth’s rotation.

  17. Polar Orbit: Movement from pole to pole

  18. 3.1 Finding Locations on Earth • Latitude • Longitude • Great Circles • Finding Direction

  19. Longitude or Latitude???

  20. Latitude or Longitude???

  21. Latitude Distance north or south of the equator • Parallels • Circles that run east to west • Describe the position north or south of the equator

  22. Longitude Distance East or West of the prime meridian • Meridians • Semicircle running from pole to pole • Used to describe East or West locations • Prime meridian is established as 0°.

  23. Great Circle • Any circle that divides a sphere into halves • The shortest distance between two points on a sphere

  24. Finding Direction • Geomagnetic Poles • Points on Earth’s surface just above the poles of Earth’s imaginary magnet • Geographic Pole • based on Earths axis of rotation

  25. The End !!! Begin The Scale Model of Earth Assignment.

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