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Physics 109 - Astronomy

Physics 109 - Astronomy. Introduction. Am I in the Right Place?. Eric Carlson “Eric” “Professor Carlson” Olin 306 Flexible Hours 336-758-4994 (o) 336-407-6528 (c) ecarlson@wfu.edu. Everyone Pick Up Syllabus. http://users.wfu.edu/ecarlson/astro/. https://goo.gl/forms/4RoqPOGNirJgneaX2.

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Physics 109 - Astronomy

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  1. Physics 109 - Astronomy Introduction Am I in the Right Place? Eric Carlson “Eric” “Professor Carlson” Olin 306 Flexible Hours 336-758-4994 (o) 336-407-6528 (c) ecarlson@wfu.edu Everyone Pick Up Syllabus http://users.wfu.edu/ecarlson/astro/ https://goo.gl/forms/4RoqPOGNirJgneaX2 1/14

  2. Website for This Class http://users.wfu.edu/ecarlson/astro/ Everything for this class is on the class website • Link to form if you need to add the class or change lab section • Links for all the programs/apps you will need • TopHat online voting system (must pay for it) • Stellarium program for lab • Links to Mastering Astronomy for online homework (must pay for it) • Schedule/Reading Assignments for the entire semester • Lab Schedule for the upcoming week • Information for upcoming tests • Old Tests • Lectures (after they are given) • A few lectures in advance

  3. Can I Add This Class? • The class is full – there aren’t seats for more students • I can’t add anyone until Friday-ish • Between now and Friday, simply add yourself to one of the wait lists for the class • There are currently 8 students on wait lists for all sections of this course • I am making my own list for use after Friday • To put yourself on this list, follow link from class website, or directly type in https://goo.gl/forms/4RoqPOGNirJgneaX2

  4. Dr. Carlson’s Approximate Schedule Monday Tuesday Wednesday Thursday Friday 9:00 10:00 research research research 11:00 12:00 office hour office hour PHY 109 PHY 109 PHY 109 1:00 office hour office hour PHY 742 PHY 742 PHY 742 2:00 research research research Lab Meeting 3:00 Free food research 4:00 Collins Hall colloquium 5:00 • I will try to be in my office Tues. Thurs. 12–2 • When in doubt, call/email first

  5. Materials http://users.wfu.edu/ecarlson/astro/ • The Essential Cosmic Perspective, 8th edition • Pen or Pencil, Calculator • Laptop • Mastering Astronomy access code associated with text https://www.pearsonmylabandmastering.com/northamerica/ • TopHat interactive class-participation software, 4-month subscription https://app.tophat.com/login/756981 • Stellarium planetarium software, free of charge https://stellarium.org • Labs for each lab class, printed for free from the web http://users.wfu.edu/ecarlson/astro/labs

  6. Reading Assignments • There will be reading assignments for every lecture • Posted on the web page • This corresponds roughly to what I will lecture on that day • Once you have completed the reading assignment for the week, you can take the reading quizzes that are on your homework assignments • Pretty easy multiple choice questions DateRead Today Secs. 1.1-1.3 WednesdaySec. 2.1-2.3 FridaySec. 2.4, 3.1-3.3 Tuesday Homework A, Intro to Mastering Astronomy

  7. Mastering Astronomy • Everyone needs to sign up for Mastering Astronomy • Log onto website using your access code • Sign up for this class: carlson78119 • Input your 8-digit student ID (Not the digit after the space) • This website is where you will do reading quizzes, other homework, and check your test scores, lab scores, and other information • Homework is due at 11:50 pm once per week, usually on Sunday • This week it is due on Tuesday, because of the holiday https://www.pearsonmylabandmastering.com/northamerica/

  8. Homework • Homework is due at 11:50 pm every Sunday (except this week on Tuesday) • You can complete the homework late, but you cannot get credit for it • If you think you have a good excuse, let me know and I can grant extensions • To get full credit, get it right the first time • On 4-way multiple choice, you lose 33% on each failure • On most problems, you lose 5% on each failure • Hints are also available • Tiny bonus if you don’t use hints • You may discuss homework with others, but do it yourself • Getting homework done for you is honors code violation

  9. Class Attendance and Participation • I do not directly grade on attendance (except for today and Wednesday) • But I do grade on class participation • To participate, you will need the TopHat class participation app, which can be found at • Download to laptopor phone • You can use this app free for one week, and then you can get reimbursed for about two more weeks • Join code is 756981 • There will typically be multiple choice questions given about three times per class • Graded as: 4 points for right, 1 point for wrong, 0 points for no participation • Your lowest eight tophat scores will be dropped • This allows you to miss class due to illness, sports events, etc. • You don’t need permission, etc. to miss regular classes https://app.tophat.com/login/756981

  10. Astronomy Labs Olin 105 Once a week, 8-10 PM Day depends on your lab section Cannot go to a different section Labs start this Sunday Taylor Ordines • Calculator • Laptop • Stellarium software (free) https://stellarium.org/ • Lab Manual – from website • Or bring cash Kevin Roebuck

  11. Missing Labs • What if I miss a lab? • TA’s cannot excuse absences • Email me/call me/text me immediately (336-758-4994) • If it is scheduled in advance, let me know • If you are too sick to call or email, doctor’s note • To make up a lab: • Get a make-up sticker from me • Check online for when you can make it up • Attend the lab, and put the sticker on your lab • Inform your regular TA you have made it up • One lab grade is dropped • Two if you do the special Lunar Eclipse lab

  12. Lunar Eclipse Lab/Party Sunday • There will be a total lunar eclipse this Sunday – Monday Jan. 20-21 • There will be a party/lab from Jan. 20 10:15 pm – Jan. 21 12:15 am • Held in Olin 101 (bad weather) or Olin roof (good weather) • Signs will be posted to tell you where to go at the time • Attendance is optional, but everyone is encouraged to attend • You will be doing a special lab that evening • Download and print it from the lab page in advance • This lab will be substituted for your lowest lab • Effectively, if you do this lab, your two lowest lab grades are dropped

  13. Exams ExamDate Length Test 1 February 6 33 Q Test 2 March 6 33 Q Test 3 April 5 33 Q Final May 3 66 Q • 33 Multiple Choice questions • 66 for final • Emphasize Concepts • All formulas provided Formulas in red boxes are on the test Your final is Friday May 3 Plan Accordingly Absences from Exams: • Call me/e-mail me immediately(336-758-4994) • If you are too sick to call, doctor note • Schedule make-up time with me The normal penalty for cheating is an irreplaceable F in the course and one term suspension from WFU.

  14. Grading Scheme Grading Breakdown Exams: 1 314% Final 28% Homework 15% Labs 10% Class Part. 5% Grading Scale: A 94% C 73% A- 90% C- 70% B+ 87% D+ 67% B 83% D 63% B- 80% D- 60% C+ 77% F <60% If you fail Lab, you fail the course! Usually round grades, no other curving

  15. Bad Weather / Pandemic Plans If school is closed temporarily for any reason • Email will be sent telling you what we are doing • Lecture notes will still be provided on the website • Possibly videos will be provided If there is an emergency shutdown of the school: • Check the website for instructions: http://users.wfu.edu/ecarlson/astro • Check your email • Call me at home: 336-724-2008 • Call my cell: 336-407-6528

  16. Units in Astronomy Angles degrees 1o arc-minute 1' = o arc-second 1" = ' Time s min = 60 s hr = 60 min day = 24 hr yr = 365.25 day kyr = 103 yr Myr = 106 yr Gyr = 109 yr Distance m m = 10-6 m km = 103 m AU = 1.5108 km ly = 0.9461013 km kly = 103 ly Mly = 106 ly Gly = 109 ly (pc = 3.26 ly) 1. Understanding Arc-Minutes and Arc-Seconds

  17. The Calendar is Based on the Sky • The day • The Sun rises and sets every day • The year • The Sun’s altitude in the sky changes over the year • The month • Moon cycles throughits phases roughlyevery 29.5 days • The week • Days of the week arenamed after celestialobjects Sunday Sun Monday Moon Tuesday Mars Mardi Wednesday Mercury Mercredi Thursday Jupiter Jeudi Friday Venus Vendredi Saturday Saturn

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