Physics 231 Lecture 1 Instructor Bill Lynch Lynch nscl msu edu 333 6319 W106 Cyclotron Off Hrs Thursdays 11 50 12 30 in 1248 BPS and Wednesdays in 3 4 pm Cyclotron W106 and by appointment Required materials Text College physics A strategic approach by R D Knight B Jones and S Field Vol 1 Clickers for class participation and quizzes Physics learning center BPS 1448 Staffing schedule on Phys Phys 231 home page Class calendar provides guide to reading homework assignments and test dates Read the syllabus on course website http www nscl msu edu schatz phy231 html as an assignment Course grade is based on homework quizzes two mid terms and a final exam Each midterm 20 pts Final 40 pts Homework 20 pts Maximum points 100 pts There are possibilities for extra credit Up to five points will be given for inclass quizzes Up to 1 point will be given for participating ti i ti in i the th Learning L i group project There will be no makeup opportunities for quizzes quizzes We drop 25 of the possible quiz points If you get 75 of the possible quiz score you will get the 5 extra credit points Grade scale minimum score pts 4 0 92 3 5 84 3 0 76 2 5 68 2 0 60 1 5 52 1 0 44 All midterms are counted in the score no dropping of lowest score Make up exams may be possible for students that have legitimate conflicts with i h the h exam date d due d to participation i i i in an University sanctioned activity However students need to obtain ppermission BEFORE the normal exam to take a make up exam Exams are closed E l d book b k closed l d notes No Cell Phones You will be permitted bring one formula sheet for each midterm exam and two formula sheets for the final exam Mid term exams can be corrected by logging onto LON CAPA Corrections due at 11 pm on the first Monday following the exam Homework is to be done using LON CAPA and is due at 11 pm on Thursday evenings No extensions of 11 ppm deadline network failure notwithstanding Don t wait until the last minute Being out of town away from a computer is not a valid excuse More about Quizzes Quizzes are given randomly You must take your quizzes in this section You will not get credit for taking quizzes in the other section Quizzes use the iClickers Q Register at www icklicker com by Friday Use your student ID NUMBER with the preceding A We will post scores occasionally check to make sure you are registered i t d properly l Three types of quizzes Spontaneous quizzes not graded Designated extra credit quizzes Reading assignment quizzes count towards extra credit typically Tuesdays g recordingg qquiz results for credit next week We will begin You must use your own iClicker If you are found to be using the iClicker of another person enrolled in this section it will be confiscated and your actions will be taken to be a violation of the rules covering academic honesty 4 Physics Learning Center The PLC is in BPS 1248 details and schedule on the website Limited TA support for this course 2 specific Tas 7h each addtl TA for 231 232 p learning g center not a helproom p TAs will The PLC is a cooperative encourage group work and will help groups when they are stuck Group work has been proven to be a very effective learning tool for strong and weak students students You must do your own assignments and you still must learn how to do problems on your own Don t do everything in groups g on your y own as much as you y can before working g Do assignments in the group PREPARE 5 Extra Credit Group Work Project Good option for students who feel they would benefit from structured group work Sign up by Friday Friday midnight Jan 14 on the course website Brief summary of requirements Meet once a week with an assigned group of fellow PHY231 students 3 5 in PLC Required to prepare for meeting Do homework as much as possible Work on assigned homework problem Discuss course contents and fill out a form at the meeting that provides feedback for the course so not just homework Self grading of preparation level 1 extra credit can miss 2 meetings at most 6 How to succeed in Physics 231 Read the book before coming to class Some quizzes will be on the reading material even material that has not been covered in class material class We encourage you to participate in a Learning group project in which you will be paired up with other students in study groups To obtain the extra credit you will need to meet with your study group once a week in the PLC PLC during which you will discuss and develop strategies for solving the homework problems Details about the signup will be sent to your registered email address this week week Recognize that learning physics is different than many other subjects There isn t much emphasis on memorization memorizing facts and homework problems is less useful than in many other courses courses The key is to learn to recognize physical principals that are important for specific problems and to use that knowledge to select the appropriate general techniques to solve them them You need to read the chapter and understand the principles before attempting the problems You Y need d to try the h problems bl yourself lf don t d just j follow f ll the h hints hi andd suggestions of your classmates Little is learned by copying or memorizing the solution of another student Chapter 1 Main points p Use SI units Mass kilograms kg g meters m Length Time seconds s Units and unit conversions Use of dimensional or unit analysis y to check answers Significant figures Coordinate system displacement and velocity Basic units and dimensions dimension symbol English unit SI conversion Length L Inch in Meter m 39 37 in m Time T Second s Second s Example E l 1 unit it conversions i Mary is 66 inches high What is her height in meters Example E l 2 2 John s room measures 9 ft by 12 ft What is the area of his room in m2 Note m2 means square meter Thinking about dimensions The equation Th ti v v0 mv2 v velocity distance time l it di t ti m s v0 velocity distance time m s m mass kg a must be correct b may be incorrect c must be incorrect d no wayy to tell without reading g chapter p 2 dimensional analysis L L M L 2 ans c T T T 2 U it analysis Units l i m s m s kg m 2 s 2 ans c Significant figures We usually W ll needd to t know k how h accurate t some value l is i A convenient i t shorthand is to keep only the number …
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