Plate Tectonics Project

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School

Elgin Community College *

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Course

105

Subject

Physics

Date

Feb 20, 2024

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docx

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2

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1. How many satellites are needed to pinpoint the location of a spot on Earth? 4 satellites 2. Why can’t you use less? Using any fewer satellites results in multiple solutions. 3. Give an example of a reference frame in your daily life. Im running to my house, my house is the reference frame. 4. Draw a vector below (if you are using Word, try “Insert”, “Shapes” and choose an arrow. If you are using Google Docs, try “Insert”, “Special characters” and choose an arrow). 5. How long is it in centimeters and what direction is it pointing if north is at the top of the page? If you are using Word, click on your arrow, choose “format” and “size”. If you are using other software, you can check that you are viewing at 100% and hold a ruler up to your screen. Some software has a ruler built into the page, too 1cm, pointing East 6. What do the blue vectors represent? Velocity vectors represent the direction and speed of GPS stations 7. Is the GPS station located at the head or tail of the vector? The tail of the vector 8. Zoom in and pan over so Illinois shows. On the drop-down menu, change the display so it shows all of the “markers” and “Station labels”. Click on “Display Map” to show your changes. a. What is the name of the station closest to campus? MIL1 Milwaukee_1 b. Click on the name of that station. How fast and in which direction is that station moving (horizontal speed) compared to the reference frame? Horizontal speed- 0.59mm/yr Direction- 58.20 east 0.5, north 0.31, up -4.18 mm/yr (reference frame- N.America, NAM14, UNAVCO) 9. Make a hypothesis to answer this question: Why are there so many base stations in California and so few in Illinois? Is the number of base stations dependent on states that are on a fault? 10. In general, what direction is the land moving overall compared to the reference frame? (5 points)
a. Near Seattle, Washington? From the reference point, moving NorthEast. b. Near Ely, Nevada? From the reference point, moving West. c. Near Los Angeles, California? From the reference point, moving NorthWest. d. Near Homer, Alaska? From the reference point, moving South. e. In Hawaii? From the reference point, moving NorthWest. 11. Identify two places on the map that you think would be most likely to have earthquakes. Explain why you think these particular places would be more likely to have earthquakes using the vector data from the map. What should the people who live in these areas do differently because of their risk? (3 points) Los Angeles and near Sequoia National Forest are most likely to have earthquakes because of the vast tectonic plate movement. People should move, or build homes with stronger infrastructures because of their risk.
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