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Astronomy Assignment #7 Your Name______________________________________ Your Class Meeting Time __________________________ This assignment is due on __________________________ Submit this cover sheet with your assignment. Complete the assigned problems from the text listed below and address the Instructor Assigned Topic. Mathematical problems may be hand written. Write out the problem, show your work in solving the problem and state your answer in a complete sentence. Failure to complete all three of these tasks will result in less than full credit awarded. The Instructor assigned topic must be typed. Text Problems: Unit Number 34 Questions for Review Problems 13 Instructor Assigned Topic: 1. This assignment will ask you to write a two paragraph quantitative description of the properties of the Average Terrestrial and Jovian Planets. The paragraphs must have a parallel structure (quantitatively when possible) summarizing the following properties of the Average Terrestrial and Jovian planet: distance from the Sun in Astronomical Units, density in g/cm3, mass in Earth masses, radius in Earth radii, nature of the surface, principle composition and depth (shallow or deep)* of the atmosphere, number of natural satellites, rotation period in days (Ignore negative signs) The information can be obtained from the text Appendix on Planetary Properties and in Unit 33. Information not in these two locations may be found in the chapters covering each planet or through the Internet at http://nssdc.gsfc.nasa.gov/planetary/factsheet/. Each paragraph should describe the average Terrestrial or Jovian planet using the known properties of the planets in our Solar System as a guide. Describe the average Terrestrial and Jovian planet and give the range of their characteristics. You will find it helpful to complete the table on the other side of this page before constructing the summary paragraphs. *Note: A shallow atmosphere is any atmosphere whose depth is much smaller than the radius of the planet. Shallow atmospheres are characterized by weak vertical winds and poorly transport heat away from the planet. A deep atmosphere is any atmosphere whose depth is about the same as the radius of the planet. Deep atmospheres are characterized by strong vertical winds and efficiently transport heat away from the planet. 2. Create a written summary/outline of Sections 35.2, 35.3, 35.4 and 35.5. You are to summarize each paragraph of these sections with one sentence. For example, you will be asked to summarize the seven paragraphs in Section 35.2 in seven sentences. For example, I would summarize the third paragraph in section 35.4 as follows…In the cold outer solar system, planets grew rapidly from their ice cores, due to the 10 times abundance of ice over rock, and then captured deep atmospheres of H 2 and He making then vastly larger than the inner warmer planets that had only a small amount of rock to form from, leaving them unable to capture H2 and He. Extra credit assignment: Counts only if the previous work is completed. Answer the following Questions for Review Unit Number 34 35 Questions for Review 4, 8, 9 5, 7, 8, 9 Table of Planetary Properties Property Distance from the Sun in A.U. Density in gm/cm3 Mercury Venus Earth 1.0 5.5 Mass in Earth masses 1.0 Radius in Earth radii 1.0 Nature of the surface Rocky, active volcanoes, plate tectonics, ¾ covered by water, Ice at the poles Depth (Shallow or Deep) and composition of the atmosphere Shallow, N2 & O 2 80% & 20% Number of natural satellites 1 Rotation Period 1 day Mars Average Terrestrial Planet Jupiter Saturn Uranus Neptune Average Jovian Planet 3