Department of Physics & Astronomy
PHYS 1210/1310: Physics I – Mechanics and Waves General Information OfficeE-mailInstructor:R. Michalak, PS215 rudim@uwyo.eduTAs:Josh @uwyo.eduBijay DC @uwyo.eduJamesJames LillySI:Silba sdowell@uwyo.eduSI session Zoom CRN 13498Office hours (RM): Zoom tbd, or by email appointment TA office hours tbdThis course fulfils university program requirement USP03 ‘SP’ or USP15 ‘PN’ for 4 credit hoursf2f Lecture:MWF 2:30 to 3:20 CR 129f2f Laboratory:all in STEM 185tbdf2f Discussion:tbdText:Sears & Zemansky’s University Physics, 15th edition byYoung&Freedman (older editions may vary substantially! second hand books often come with expired homework key)Access the book and the homework through wyocourses. Homework is done through MasteringPhysics and it is inclusive access through wyocourses with the ebook.Webpage:You will find lecture templates and other course related information on my website physics.uwyo.edu/~rudim . Check regularly for updates.Supplementary Reading Suggestions: On your request I am happy to name some useful texts, which adopt different teaching approaches than Young Friedman. As you progress in your major, reading will become a more and more substantial aspect of learning. At our course level, expect to read about 20 pages per week in our text. I will clarify reading techniques in the prelab and/or on the course webpage. Covid Reopening Specifics:All classes at UW have been arranged in four phases. In phase three the delivery may differ according to the instructor choice. My choice is to have lectures, discussions, and lab face to face. However, I do offer online backups based on a lecture course I have taped on Wyocast in summer 2019: Go to Wyocast Presentations on Wyoweb → A-Z, choose College of A&S, then Physics. Access the lecture folder. Note that the videos can be sorted by a number of criteria and that some videos are accessed through page two. I have also taped all labs and created data sheets so that you can take labs online as well. Discussions could be made available through Zoom where possible.To help with student success I will run interactive Office Hours twice a week on Zoom. You can ask questions there and review the material and key problems with me and under my supervision.Under the Hyflex face-to-face teaching, as many students as the occupancy plan allows will be in class at any lecture. Since our enrolment of 52 students exceeds the class occupancy limit by roughly 100%. This means that every student can come to lecture roughly every other time. At the beginning of phase 3, I will consult students whether they want to opt all online for the class. If this brings in-class enrolment down then the remaining face-to-face students can come more frequently to lecture. I will inform face to face opting students accordingly.Should an outbreak at UW extend the class time spent online we will continue to use Wyocast for lectures and filmed labs with data sheets for lab.Course Content and Course Pre-Requisites:A working knowledge of calculus is required. Calculus I is a pre-requisite for this course, Calculus-II is a co-requisite! If your co-req has been waived it is your responsibility to make sure you stay on par with the math in lecture. Some basic explanations will be given, but this is not a math course. Note, that the systematic of the science of physics does not follow the systematic of mathematics! We will have to use concepts like differentiation, integration, and vector calculus. Also, good success in this course is unlikely without a solid grasp of algebra, geometry, trigonometry, and mechanics. If you lack in any of these I am willing to help you, for example during office hours, but it is ultimately your responsibility to put in the work it takes to catch up. All of the following information is tentative, and I reserve the right to change any of it as seems necessary to keep the class average on course. If such changes are made, they will be announced in lecture. It is your responsibility to keep yourself informed about any such changes:LectureThis course is an introduction to the physical phenomenon of gravity and the field of mechanics. We will approach the material from theoretical and applied angles. Mechanics builds the foundation of classical physics. We will deal with the so-called Newtonian Mechanics and will concentrate on an understanding of the concepts of force and energy as cornerstones of the theory, and we will formulate the principles of Newton’s Laws, Energy Conservation, Momentum Conservation, and Angular Momentum Conservation. These do all apply, too, in a bigger context than just Mechanics of Classical Physics, but their foundation lies in this field. We will then extend our understanding of Newtonian Mechanics to periodic motion and and introductory treatment of wave motion (Wave Mechanics). Time permitting, other specialized topics will be added (see tentative schedule at the end of the syllabus).My interactive teaching is sometimes improvised and ad hoc because I try to respond to questions and follow student ideas that may emerge in a classroom in real time. Under such circumstances, making a few mistakes is human. When I catch such errors early, I correct them as I go. When I catch them late, I may send a class email out to address the situation. I will use your UW email address to convey such corrections.Some technical notes:The lecture will in part be presented in power point and in part on the white board. Demonstrations, videos, and web-applets will be used wherever helpful and when it fits into the time schedule. They help illustrate a complex or new phenomenon or principle and break up an otherwise overbearing lecture block. You need to write down the information on the white board as your lecture notes, or it will be lost. You are expected to take notes about videos and demonstrations etc. The content of both may be part of exam questions. Exam questions are generally closer to lecture problems than to homework problems.I employ group-work techniques during lecture. Our department’s record has shown that the use of modern teaching techniques deepens understanding and reliably improves the outcome on standardized tests of knowledge retention. You can only expect to benefit from these when you actively participate.Discussion Sessions and Laboratory needs proof reading and adapting to covid/onlineParticipation in discussions is mandatory up to shortly after the first exam. Missing a discussion means losing points toward your final exam (see below). After that, participation in discussion means earning bonus points toward the final exam grade. Students, who show up briefly, more or less just to sign up, do not count as participating in the discussion.Participation in all laboratories is mandatory for the successful completion of this course. There is time for one makeup lab at the start of Thanksgiving week (see tentative schedule). If you miss a lab you cannot submit a lab report and all points for that lab are lost. If you do not participate in lab at all or only very rarely, you fail the course, unless you have a university or valid doctor’s excuse which you present to me before missing labs or right after you come back after a sickness.To be reviewed:Each lab consists of a pre-lab, the main lab work, and a post-lab report. The post-lab reports are due at the beginning of the next lab and we do our best to have them graded and handed back at the lab in the week after that. Note though, TAs have midterm exams and some delay is possible in those weeks. The pre-labs have the character of predictions and are not graded. You do them with your group at the beginning of lab. Each lab is of equal value for your final lab grade. In the post-lab there is a follow up question about your prelab predictions that is graded. Consequently, you have to include your prelab when you hand in your postlab. Your TA assesses your personal performance during lab (you can lose up to 4 pts off your lab grade), including early departure, incomplete data, wrong data, etc. In general, the expectations start low and end high over the course of the term. All lab group members contribute in equal share to each postlab every week. You indicate this by signing on the front page what your role in the write-up was (see section on academic dishonesty below). You receive report grade points for your section but you also receive some points for making sure that your group mates do not make mistakes in their parts and that the parts fit together and make sense as a whole.Preliminary character of TA grades. At the end of term I will check whether there was any grading bias by TAs. In order to warrant fair grades across different TA grading habits, I may then decide to curve final lab grades. I evaluate this by taking the average grade of each lab section and compare it to the average grade the students in these sections have got otherwise in the course. If there happens to be a notable difference between TAs, I will remove that difference for the lab section’s average grade. Some students may see their lab grade go down while others may see it go up. Usually, this does not exceed 2 or 3%.As the term progresses, our expectations for your competence in lab will increase: During the first few labs, it is mainly your active participation that is assessed. By the week of exam 1, we will operate near full expectation level. At that time, thoughtful work will include the anticipation and correction of systematic errors, your decision to adapt the experiment plan to the factual situation in the lab, and other such proactive contributions. The competence of your contribution will include such factors as the correct use of measurement equipment, decisions made to get more meaningful data (repetitions), and the identification and timely correction of obviously wrong results. Think of this as a skill you need to master for future job performance. ExamsThe exams will contain both quantitative and conceptual problems. The exams will be closed book and closed notes. I will provide you, however, with the formula sheet taken from the Phys 1210 master formulas in the lab manual. All exams are mandatory and none of the grades will be dropped or replaced. The exams will be held at the following times and cover the following chapters in Young & Freedman:Exam 1, R Oct 8 500 – 700 pm Chapter 2-7 Exam 2, R Nov 5 500 – 700 pm Chapter 8-10Exam 3, F Dec 11 115 – 315 pmCumulativeIf you have a university excuse or other acceptable reason – judged at my discretion - to ask for a makeup exam, I will consider that request, if it has been sent to me by email not later than the Monday before the exam. You will only be able to participate in the makeup exam, if I receive your email before the deadline. Based on the details you will provide in the emails I will set a single makeup time. Makeup exams may differ significantly from the main exam and tend to be a little bit more difficult because there is less time for polishing the problems.HomeworkWe use the Mastering Physics (MP) online homework system. The online homework must be submitted by each student individually, but you are allowed to work together on the solution method (not on each individual numerical solution!). You will find that, if you try to take a free ride on these, you will fail the exams by a wide margin. In general, it is better to try to work the problems yourself even if you lose points because working on your own is what you will have to in exams.The deadline for each online homework is indicated in the tentative schedule below and in MP, but is subject to change as announced during lecture. Be advised not to work last minute on the online submissions. The system tends to be busy at times and the internet connection could be down. It is your responsibility to submit before the deadline. I set the online hw system up to accept post deadline submissions for a grade penalty. This grade penalty builds up gradually, so submitting five minutes late is not a big deal. The system will close for all late submission on the last day of classes and is open for the grade penalty late submission for ALL problems until 5pm on the last day of classes.The MP syntax requires some experience. I provide a no-penalty training hw called HW0. Some problems in it can earn you a performance based bonus toward your first exam grade. It also gives you opportunity to learn the language syntax to avoid grade penalties in the actual hw. Academic dishonestyIn short: Don’t cheat. In the long run you are only hurting your chances of succeeding in college because courses build onto each other and the gap keeps widening as you transfer a lack in one subject to the next level. Not being proficient at solving the offered problem types also makes your exams more difficult than they otherwise would have to be. Finally, cheating is, of course, dishonourable behaviour.The actual university rules:Academic dishonesty is defined in University Regulation 802, Revision 2 as “an act attempted or performed which misrepresents one’s involvement in an academic task in any way, or permits another student to misrepresent the latter’s involvement in an academic task by assisting the misrepresentation.” and there is a well-defined procedure to judge such cases and serious penalties may be assessed. A shorter common sense interpretation could sound something like this: If it’s not your work, don’t pretend that it is.For our work the following is of particular relevance: to be updatedThe general solutions to online homework (i.e. NOT with your own set of numbers but ONLY the principle ways of answering a question of a certain type) may be discussed in groups but must be worked out and submitted to the MP grading by each student separately. In particular, it is not allowed to use one student’s account to test an answer and then use it for submissions in other accounts. If the TAs or I catch you violating the rules you will get a 0% F on the assignment. If we catch you twice you will get an F for the course.Using solution DVDs or online sources for the online hw problems is cheating and will be treated accordingly. You can, however, use such sources to look up how similar problems are solved.Lab reports are group work. You will be assigned to lab groups and the groups will be changes twice during term. You will be informed at the latest the week before that happens. The group writes a single lab report with all participants’ names on the report. The report receives a single grade. Everyone has to contribute to each report according to the rules specified above. The proper format for the lab report will be explained in prelab (lab0). If you do not do any part of the work you will get a zero grade for the report and a 50% grade if you participated in lab.If you get caught breaking the rules (or if you admit to having done it), all involved parties will receive a ‘zero grade’ for the overall grade of that assignment, regardless of the actual score you achieved. If it happens a second time you will receive an F grade for the course. I reserve rights to take further steps based on the severity of a case.Exams are not group work, must be entirely your own work, and must be performed without consulting any help (no books, notes, electronic media, etc. other than what is being handed out to you). If you get caught cheating in an exam you will receive an F grade in the course and a report will be filed with the Dean of Students. In addition, an academic dishonesty charge may be submitted to the College.Academic honesty is important beyond school, and in school it has many purposes, for instance to develop respect between faculty and students, to ensure fair and effective grading, and to help create an environment that fosters learning. Special accommodationsIf you have a physical, learning, or psychological disability and require accommodations, please let me know as soon as possible.? I will try to accommodate your condition as best as circumstances allow. This is especially important during the online phases of class.You will need to register with University Disability Support Services (UDSS) in SEO, room 109 Knight Hall, 766-3073, TTY: 766-3073. If you choose to notify me late about such circumstances you forfeit your right for special accommodation for that instance.Additional helpYour TAs, the SI, and I myself have Zoom office hours (see front page of syllabus). I encourage you to come to any of these to clarify any issues you may have with understanding the material. These opportunities are also ideal for addressing any remedial knowledge issue you may be struggling with. Contact me, if you have any issues with coming to class or attending Zoom events, need a deadline extension, etc. I will consider an extension of a deadline only, if you ask before a deadline and if you have a valid reason.Tutor CenterThe STEP Tutor Center in Coe Library offers free evening tutoring for many courses. Visit Coe Library between 5:00-9:00pm (Sun. – Thurs.) and visit the STEP website for full details about tutoring opportunities and other UW resources: uwyo.edu/step?? Tutoring is available in this class at the STEP Tutor Center and eTutoring.How to be successful in physics and in our course:Work both independently and in groups of your peers. You can help each other understand the course material. The person who explains learns, and the person who asks learns too. If you need help finding a group of classmates to work with, let me know and I will help to match you up.Read the text. The text can be lengthy and you may struggle to make the time to read it all. Identify the core text of a chapter (usually where the main definitions are introduced) and at least one core example (usually not the short and easy one) and read those. Reading physics texts means working through them and going back and forth as signposts in the text may indicate (e.g. see figure 1; or: according to equation 2.3 means: go there and study it in context). Consult the course webpage for a reading guide.Lecture time is sparse and should be reserved for the difficult aspects of a topic. Come prepared and it will be much easier to follow the difficult material.Plan to spend approximately 1-2 hours outside of class for each hour you spend in class: doing homework, reading the text, writing lab reports etc. For a 4-credit class this amounts to something like 7-14 hours per week outside of class. If you are spending routinely much more time than this, please come to see me so that we can ensure that you spend your time efficiently. If you are already very familiar with a topic you may be successful when you spend as little as 6-7 hours per week out of class on the material. Do not underestimate this load: 7 hours out of class means on average one hour every night. If you take four difficult courses that’s 4 hours every night!Work many problems beyond the assigned homework. As with everything one wants to gain proficiency in, the only thing that really helps is practice. Topics students struggle most with in this course are: Center of Mass, Moment of Inertia, and Waves. Be extra prepared when these are on the day’s agenda.Attend every lecture, discussion, and lab. Getting material that you missed is your responsibility.Read your university email account at least once daily. I do contact students through their Wyoweb registered primary email address when an issue cannot wait till the next class meeting.Zoom etiquette: be respectful, switch your camera on, switch your sound off when not speaking to the class to avoid background noise disturbance of class, use the Raise Hand function and the private chat to claim a speaking spot, wait your turn.GradingThe average final grade in the course has historically been a C+/B- (~ GPA 2.4-2.6). This is right on target for the ten year average of freshman and sophomore classes in both, the College of Arts and Sciences and the College of Engineering. Details of grading (tentative and subject to revision at my discretion):Exams: 3(70%) exam 1 and 2: 20% each, the final exam 30%.Homework: 12 online(15%) Bonus hw tba as needed(grade bonus to be determined)Labs: 10(15%)Miscellaneous: discussion 7-13 bonus (up to 2% on final exam) HW0 bonus (up to 1% on first exam) Possible Discussion 1-6 penalty (up to -1.2% on final grade) _____ 100% Scale: A > 90%GPA 4.0B > 80%3.0C > 70%2.0D > 60.0%1.0F < 60%0.0I reserve the right to curve the final grade and each exam. Curving can be helpful to keep class morale up, but is detrimental to group work and prevents students from getting realistic feedback on the quality of their work. It may also contribute to unrealistic expectations for upper level courses. I strive to minimize curving and, ideally, I avoid it altogether. Grading Key√correct(√)mostly correct ~ somewhat correct ≈ vague (-) incomplete - missing # wrongI will discuss grades for hw, labs, exams, and all other grades only for up to one week after the work has been handed back to class (not one week after you may have collected it).Tentative Class Schedule Fall 2020 – Phys 1210Phase 1: 8/24-9/4Phase 2: 9/7-9/25Phase 3: 9/28-11/20Phase 4: 11/23-12/11WeekMWFDiscussiontentativeLabtentativeNotes to be updatedDeadlines tentative: all hw deadlines 11pm on day shown 1 Aug 24 – Aug 28IntroK1Ch2K2Ch2K3Ch2NodiscussionHW0 (bonus) due S 8/29, 11pmAug 27 last change /add date 2 Aug 31 – Sep 4K4Ch2K5Ch3K6Ch3D1, reqK-1dPre lab- Lab 0Safety adviceSign-off (mandatory)Homework #1: due S 9/5 ch 2,3 Sep 2 last drop 3 Sep 7 – Sep 11K7Ch3K8Ch3D1Ch4D2, req.K-2dLab 1Projectile motionHomework #2: due S 9/12 ch 34 Sep 14 – Sep 18D2Ch5D3Ch5D4Ch5D3, req.D-w/o fLab 2Verifying N lawReport 1 dueHomework #3: due 9/19 ch 45 Sep 21 – Sep 25D5Ch5C1Ch6C2Ch6D4, req.D- w/ fReport 2 dueon day lab wouldhave beenHomework #4: due 9/26 ch56 Sep 28 1 – Oct 2C3Ch7C4Ch7C5Ch8D5, req.EnergyLab 3Ballistic Pendulum Homework #5: due S 10/3 ch 6,7 7 Oct 5 – Oct 9C6Ch8C7Ch8C8Ch8D6, req.MomentumLab 4Collisions Report 3 dueExam 1 Oct 8 5pmHomework #6: due S 10/10 ch 8 8 Oct 12 – Oct 16R1Ch9R2Ch9R3Ch9D7, bonusR kinematicsLab 5 Unfair RaceReport 4 due Homework #7: due S 10/17 ch 9 mid semester: Oct 159 Oct 19 – Oct 23R4Ch9R5Ch10R6Ch10D8, bonusR dynamicsLab 6Atwood MachineReport 5 dueHomework #8: due S 10/24 ch 9,10midterm grades due on 10/22 10 Oct 26 – Oct 30R7Ch10R8Ch10R9Ch10D9, bonusR ang.mom. Lab 7Ang. MomentumReport 6 due Homework #9: due S 10/31 ch 10advising week, get your PERC 11 Nov 2 – Nov 6PM1Ch14T1PM2Ch14PM3Ch14D10, bonusPMNo labReport 7 dueExam 2 Nov 5 5pmno hw this weekNov 20?? last day to withdraw from course 12 Nov 9 – Nov 13PM4Ch14W1Ch15W2Ch15D11, bonusWaves 1 Lab 8PendulumHomework #10: due S 11/14 ch 14 13 Nov16 – Nov 20W3Ch15W4Ch15W5Ch15- D12, bonusWaves 2 Lab 9Standing WavesReport 8 due Homework #11: due S 11/21 ch 15 14 Nov23 – Nov 27W6Ch15/6W7Ch16-D13, bonusSoundLab 10Kundt/SoundReport 9 due26/27th Thanksgiving break 11/28 last day to withdraw from school15 Nov 30 – Dec 4G1Ch13G2Ch13G3Ch13 -Makeup lab Report 10 dueon lab day 11/30 last day to withdrawHomework #12: due S 12/5 ch 16,13 16 Dec7 – Dec11 Final exam All final exams are in the regular class rooms unless arranged otherwise. Final grades due K – Kinematics (8)D- Dynamics (5)C- Conservation Laws (8)R – Rotational Motion (9)PM – Periodic Motion (4)W – Waves (7)G – Gravitation (3)Consult the deadline calendar on the Office of The Registrar webpage to double-check my deadline dates.Tentative! breakdown of material for each class session: to be updated for later, changed chaptersIntroSyllabus, Overview Classical Physics, VectorsDemosi.a. workReading Vector Addition in chapter 1.7, Components of Vectors, chapter 1.8(key operations: figure 1.19 and 1.21, 1.25, 1.26 eqn 1.6, 1.7, 1.8, 1.10, 1.16), Work through example 1.6, 1.9K1Velocity and Acceleration, CalculusDemoscar applet ppti.a. work race around trackReading chapter 2.1, 2.2, 2.3 fig. 2.8, 2.13/14K2example: running around track, 1-dim kinematics, master eqn 1Demosfree fall tubei.a. work water bomb, depth cliffReading ch. 2.4 eqn. to 2.8, 2.10-2.12, to 2.13 with unnumbered steps, check 2.14K3Demosprojectile motioni.a. work flower pot, fire hoseReading K42-dim kinematics, master eqn 2Demosspring gun, projectile motion launcheri.a. workReading ch. 3.3, fig. 3.17, eqn. 3.18-3.22 and 3.23-3.26, exp. 3.7, 3.8K5examples: fire hose, …, ramp videosDemosvideo car w/ canon on inclinei.a. workreadingK6more on vectorsDemosvideo monkey shoti.a. workReading exp. 3.10, ch. 3.1, 3.2, exp. 3.1, 3.2, fig. 3.1, 3.11, 3.12K7rel. mot. continued, circular motionDemosi.a. workReading ch. 3.4, fig. 3.29, 3.30K8relative motionDemosvideo frames of referencei.a. workReading ch. 3.5, exp 3.14_____________________________________________________________________D1inertial mass, inertia videosDemosi.a. workreadingD2Newton’s LawsDemosi.a. workreadingD3examples: Atwood machine, box sliding on inclineDemosi.a. workreadingD4Friction, examples with fDemosi.a. workreadingD5more examples, N3 rocket propulsion videoDemosi.a. workreadingD5Limits of N Laws, video non-inertial frames, Absolute spaceDemosi.a. workreading______________________________________________________________________C1Work, tractor exampleDemosi.a. workreadingC2Energy types, Energy conservationDemosi.a. workreadingC3examples: Atwood machine, box on incline w/, w/o f, ropeDemosi.a. workreadingC4Impulse and Momentum, billiard ball, ping pong ball demo/exampleDemosi.a. workreadingC5Collisions, Momentum Conservation – inelastic, video: rifle, external forceDemosi.a. workreadingC6Elastic Collision, transformation coord. systemDemosi.a. workreadingC7Rocket propulsion, video: rocket propulsion, Center of Mass: practical det.Demosi.a. workreadingC8Center of Mass: calc.Demosi.a. workreading____________________________________________________________________R1Translation key, master eqn that linksDemosi.a. workreadingR2Rot. Kinematics, examples, video candlesDemosi.a. workreadingR3Moment of inertia I, approx.., Lego system, Unfair race demo; meter sticks demoDemosi.a. workreadingR4Moment of inertia II, calc/integralsDemosi.a. workreading_____________________________________________________________________R5Unfair Race, calcDemosi.a. workreadingR6Torque, example Atwood MachineDemosi.a. workreadingR7more examples, mod. Atwood, incline, rot. mot w/ energyDemosi.a. workreadingR8Work, Ang. Momentum, video ang. Mom., example, GuidoDemosi.a. workreadingR9Gyroscope and precession, (Coriolis)Demosi.a. workreading________________________________________________________________________PM1Periodic motion primerDemosi.a. workreadingpendulumPM2example derivative: x, v, a, demo: pendulumDemosi.a. workreadingPM3Energy in PM, exp: K vs U; adding mass at A and 0Demosi.a. workreadingPM4Pendulum, Damped and Driven PMDemosdamped and driven pendulumi.a. workreading_________________________________________________________________________W1Wave jargon, y(x) vs y(t) i.a. work, Demosi.a. work construct y-x and y-t graphsreadingW2solution wave eqn, calc 2nd derivatives test eqnDemosi.a. workreadingW3standing wavesDemosstanding wave on a string, wave velocityi.a. workreadingW4more about standing wavesDemosi.a. workreadingW5Demosi.a. workreadingW6Demosi.a. workreadingW7Demosi.a. workreading_________________________________________________________________________G1Law of Gravitation, video galactic ref. frame, Aristotle meets modernityDemosi.a. workreadingG2grav. pot. energy, satellites, escape velocityDemosi.a. workreadingG3exp.: superposition, field, potential, transition E&MDemosi.a. workreading __________________________________________________________________________ ................
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