Physics 222 Course Description - fall 2012 Lecturer Prof. Ruslan Prozorov A119 Zaffarano prozorov@iastate.edu 294-9901 Lecture hours: MWF 1:10-2:00 MWF 2:10-3:00 Office hours: Thursday 2:10 PM – 3:00PM (or by appointment) Lecturer Prof. Walter E. Anderson A403 Zaffarano anderson@iastate.edu 294-2823 Lecture hours: MWF 3:10-4:00 Office hours: Friday 14:00 – 15:00 (or by appointment) Course Secretary Deb Schmidt 12 Physics Bldg debs@iastate.edu 294-4936 Lab. Supervisor Dr. Paula Herrera 15 Physics Bldg siklody@iastate.edu 294-2607 All lectures are held in Physics Room 005. Help Room: room B54 Physics Text Book: “University Physics” (13th Edition), Young and Freedman (Pearson, Addison Wesley 2012) - required (You can also use 12th edition, but need to verify the reading assignments.) Optional: “Student Solutions Manual” (available in the bookstore). It contains complete solutions to many end-of-chapter problems. Labs: “Physics 222 Laboratory Manual” (University Book Store) - required Online: “Blackboard” (https://bb.its.iastate.edu) “Mastering Physics” is used for all homework – required Instructions on how to access Mastering Physics are posted on Blackboard. Log in to both sites as soon as possible after the first class The emphasis in this course will be on learning the important concepts and laws of physics and on using them to solve problems. In lectures, you will be exposed to some of the many rules that govern the world around us. You will also be assigned practice problems throughout the course; the only way to learn how to solve these problems is through practice. You are encouraged, though not required, to attempt additional problems for further practice. You are expected to read the assigned chapters in your textbook along with working on homework. The lectures move along very quickly. It is difficult to catch up if you fall behind. Therefore, it is in your best interest to read the assignment material before you come to class. With a little advanced preparation lectures will make a lot more sense. EXAMS This course has two midterm exams (see, http://www.registrar.iastate.edu//exams/nitexam.html) Thursday, September 27, 2012 at 8:15 – 10:15 PM (covers lectures 1 – 15) Thursday, Nov 1, 2012 at 8:15 – 10:15 PM (covers lectures 1 6– 29) Final exam (120 minutes) covers ALL lectures and includes laboratory questions The date and time of the final exam will be announced when they become available. Room assignments and instructions will be posted on Blackboard and discussed in advance of each exam. Exams are multiple-choice. Approximately 1/3 of the problems will stress understanding of the physics concepts, whereas the remainder will be numerical problems to test ability to apply these concepts. Material to bring to exams: a number 2 pencil, a scientific calculator. Programmable and/or graphing calculators are not necessary but may be used. Laptops, PDA’s and iPads are not allowed. your student ID card. Each exam will include the values of any physical constants you may need, a formula sheet and scratch paper. The master formula sheet is also posted on Blackboard You may choose to create your own formula sheet. Show it to the instructor before the exam. Make-up exam: A single, end-of-semester, make-up exam will be allowed only in exceptional circumstances, such as illness, family emergencies (not anniversaries, family vacations, etc.), or official university-sponsored activities. You must bring proper documentation (doctor’s notice, university official notice etc) and show it to the lecturer Students who know in advance that they will miss an exam as a result of one of these university-sponsored activities must explain the circumstances to the lecturer well before the exam and seek permission to take a make-up exam. After the fact, such permission will not be granted. Students who miss an exam because of illness or other unforeseen emergencies should send a message (by phone, voice-mail, e-mail, or through a friend) to the lecturer or the course secretary before the start time of the exam in order to receive permission to take the make-up exam. Proper documentation will be needed to validate the absence. The make-up exam will be held during the week before finals week and will be a comprehensive exam. Only one exam can be made-up in this manner. HOMEWORK Homework is given online on “Mastering Physics” and is computer graded. Problems are due before end of the day on Saturday. You are limited to 5 attempts per question Multiple questions: 20% will be deducted per incorrect answer Using the Hints is not penalized. Late submissions receive no credit You can rework completed assignments after the due date for practice. This work will not be saved and will not affect the grades. NOTE: working in groups on homework is OK, but copying answers from others, internet or other sources is NOT OK and will be monitored RECITATIONS There will be a 50-minute recitation every Tuesday. The recitation sections in this course are conceived of as hands-on / interactive activities. Discuss, sketch, ask, explain, disagree, and think aloud… Anything except sitting back and waiting for the instructor to solve the problem on the board. Your instructor is there to help you through the problems, to answer your questions and to monitor your understanding of the material. Learning is achieved by doing, not by watching. At the end of the semester, recitation instructors will give each student a score out of 10 points based on attendance, participation and attitude. QUIZZES Each recitation will include a 10 minute quiz The quiz is based on material of two previous homework assignments. Quizzes are graded by the recitation TA and handed back to the students at the next recitation. Missed quiz: If you miss a quiz and have an excuse (e.g. being sick, being away due to an ISU sponsored activity), you should bring some document to prove the reason of your absence to your TA who will give you an Excused Grade (i.e., at the end of the semester your score for the missed quiz will be the average of all of your other quizzes). LABS Information about labs (policies, grading, schedules) is posted in the lab portion of Blackboard. For more information contact Lab Supervisor. The importance of the recitation and laboratory classes cannot be over-emphasized. You will not understand the material in this course if you cannot apply it to the solution of the assigned problems. The laboratory is essential to your efforts to understand the experimental foundations of physics as well as of scientific instrumentation. Questions based on recitation and laboratory classes will appear on the mid-semester exams as well as on the final exam. GRADING Percentage breakdown Concept Evening exam 1 Evening exam 2 Final exam Recitation Homework Laboratory Points 20 % 20 % 30 % 10 % 5% 15 % TOTAL 100 % Initial scale for letter grades Total score 85 % 75 % 65 % 55 % < 55 % Letter grade A- or better B- or better C- or better D- or better F A failing course grade (F) will be given if: any laboratory has not been satisfactorily completed, or the student has engaged in any form of academic dishonesty. Homework scores: Homework is an investment –the “direct” credit from homework is only 5% of the final score, but this is the most important learning tool in the course. Homework is your opportunity to make mistakes and obtain from them the knowledge that you will need to answer the exam and quiz questions correctly. Recitation and lab scores: The precise number of recitation/lab points you receive from your instructors during the semester will not necessarily be the same as the number that counts towards your final grade. Some instructors grade "hard" during the semester and some grade "easy". Thus, in the interest of fairness to all the students, scores for hand-graded material may be corrected at the end of the semester to compensate for these differences. This means you will not automatically get a higher grade because you have an easy grader, or a lower grade if you have a hard grader. Grade book: You should regularly check that all your scores are correctly entered in the online grade book on Blackboard. It is your responsibility to bring any problems to the attention of your section instructor immediately. Exam scores: If you believe there has been an error in the grading of an exam, you need to bring this up to your recitation instructor, preferably before the exams are handed back in recitation. You and your recitation instructor should then contact lecturers no later than one week after the results are released. STUDENTS WITH SPECIAL NEEDS If you have a documented disability and anticipate needing accommodations in this course (for lectures, recitations, labs, or exams), please see me as soon as possible. You will need to request that a Disability Resources staff send a SAAR form verifying your disability and specifying the accommodation you will need. HOW SHOULD I STUDY FOR THIS CLASS? Keep up with the class! In physics, the material often builds upon what was covered the week before. If you start falling behind, do something immediately. Be sure to read the indicated reading assignments before each lecture. The reading assignments are essential to understanding the material presented in the lecture. A second reading after lecture helps cement key ideas into place. Solve problems! It is the single most important activity in a physics class. If you cannot solve the problems, you did not really understand the concepts. In addition to homework, recitation is devoted to problem solving. Redo (without looking at the solution) the examples shown in lecture. Be honest to yourself: if you solved a problem without really understanding why what you did worked, it is a waste of time (chances are that you just got lucky). Understanding is key. Check the solutions posted online. Be sure you understand all of the concepts as well as steps associated with each problem. Complex problem solving requires order: Always work with a pencil and paper, and be neat, even if the problem does not need to be turned in. When problems involve many steps and concepts, it is easy to get lost if all you have is a collection of numbers randomly scattered on a sheet of paper. Do not try to do calculations in your head unless they are trivial. Label quantities in a meaningful way (don’t call everything x!) Keep your work for future reference (see next point in this list!). Learn from your mistakes: focusing on your mistakes is the most effective way of identifying misunderstandings, weak areas, etc. Keep a list of the problems you missed, or did not completely understand, or simply struggled with. Make sure that you understand the solution, and make sure that you understand why what you did was wrong! A few days after all this, try to do the problem again. As needed, review the appropriate sections and/or go over your lecture notes. Solve extra questions and problems in the textbook (the odd numbered problems have the answers in the back of the book). A detailed solution manual is available for purchase. Join a study group. You will benefit both from other students’ insight and from how explaining something to another person tests and refines your understanding of a topic. But be careful: being able to follow a problem solved by another person is not the same as being able to solve it on your own! Group work should always be followed by some individual work. Use the help room. This is the perfect time to get one-on-one time with an instructor. STUDENT ASSISTANCE There are several opportunities for students to receive assistance with the material of this course: Room 83 Physics is the help room for Physics 222. It will be staffed with the courses’ TAs. The schedule will be posted on the door and online. Instructor office hours. The course web page. Discussion board on Blackboard. SI sessions for Physics 222 (times to be announced by the SI instructors). It is to your advantage to work with other students to learn the material. This can often help you to do better on the exams and homework. We encourage you to work together and perhaps form a study group. You may meet in the help room, if you wish. You are not required to memorize countless equations and formulas. The emphasis will be on using these equations, not memorizing them.