Katie Stonesifer S09 geosc210Exercise8

# Katie Stonesifer S09 geosc210Exercise8 - The moons...

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GEOSC 210-01 EXERCISE #8 Page 1 of 1 Katie Stonesifer Read Essay Two and Chapter Six 1. What formed the maria? Why are they smooth? Lava and it is smooth because it didn’t receive any impact. 2. Why does the Moon have no atmosphere? The gravitational force is to weak, the interior is to cold, and the escape velocity is low so atoms left easily. 3. Why is it that the Moon’s surface is cratered but the Earth’s surface is not? It is but it’s hidden by our landscape and erosion has changed the way it looks. 4. How do astronomers believe the Moon formed? What supports this theory? How does the theory explain why the Earth and Moon have such different densities? An object the size of mars hit earth early in its formation. Pieces of debris circled around earth and formed the moon. The bodies are made of the same rocks, so earth is much larger than the moon hence different densities. 5. How are tides formed on the Earth?
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Unformatted text preview: The moons gravitational pull causes the tides. 6. Why does the Moon form two tidal bulges on the Earth? When the area is pulled away from another area, it creates a second tidal bulge. 7. Why has the Moon’s interior cooled more than the Earth’s? Heat escapes far more easily because its volume is small compared to its surface area. 8. Why will an astronaut’s footprint on the Moon last so long? Nothing is there to disturb it 9. A laser pulse takes 2.56 seconds to travel from the Earth to the Moon and return. Use the speed of light to determine the one way distance in kilometers. ½ (s) x speed of light. 1.28 x 300,000 = 384,000 Kilometer 10. A spacecraft orbits the Moon at a distance of R from the center of the Moon with an orbital period of T. What is the Moon’s mass? Write the mass equation below with a pen or a pencil. M=R/T...
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## This note was uploaded on 02/12/2010 for the course GEOS 210 taught by Professor Mr.schubert during the Spring '09 term at Butler CCC.

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