Physics 251 Physics I
Warren Wilson College

Fall, 2008
Link to Activities Schedule and Assignments.  Please consult often.

Objectives and Expected Learning Outcomes

  1. Learn Newtonian physics concepts and extend to physics learned in the 20th century.  The main thrust will take place through activity-based learning with a minimum of lecturing.
  2. Learn a substantial amount of electric principles and electronic techniques early in the course
  3. Learn skills valuable in other scientific disciplines.  These "transferable skills" include computational skills with analysis packages, problem solving skills, and laboratory analytical skills
  4. Practice substantial writing with the idea of good communication.
  5. Develop a lifelong ability to find solutions and applications of physics in many daily examples.
Pre-requisite/co-requisite.  Because physics uses extensive mathematical tools, students must have completed or be currently studying Precalculus (Mat 150), or a higher level mathematics course.

Text for Physics I and Physics II:  Physics: Calculus, 2nd Ed, by Eugene Hecht.
  Combined vols 1 and 2.  Each student is required to have this text.

    The first major goal for Physics I is for students to become competent with the fundamental concepts of motion and force and to progress to the point of describing motion in terms of mathematics.  The description of motion will be extended to describe a number of phenomena characteristic of the 20th century: weird effects of objects when they approach the speed of light; the physics of sub-nuclear particles; the wave-like behavior of particles; the particle behavior of waves; superconductivity; microscopes which can "see" individual atoms; massive instruments of destruction; space travel;...

    The second major goal is to learn fundamental electrical principles as they relate to transducers for detecting motion, forces, sound, and light, and especially to learn how to use the Nobel winning device of the middle 20th century - the transistor.  These electronic devices will be used in the laboratories - to enhance the learning of modern physics as well as traditional physics.

    The third major goal concerns skills useful to students in other scientific disciplines.  Computers will be used for data acquisition, data analysis, and simulation.  The physics laboratory is well-equipped with computers for data acquisition and analysis.  Instruction will be given on how to use spreadsheets and analytical packages for scientific work.  These "tools" are available in the Warren Wilson College Computer Network as well as in the computerized physics laboratory in Spidel.  The other parts of the transferable skills involve problem solving ability and laboratory skills.

    The fourth major goal concerns communication skills, primarily through writing.  Much writing will be done in class describing physical phenomena.  Writing about physics enhances and promotes one's understanding about physics by formulating the concepts into words.  Writing assignments will consist of several types:  peer-writing in class (ungraded), commenting on peer writing, drafting and revising lab reports, and writing extensively on exams.  The extensive writing for physics class will enhance the learning of physics - the primary goal.

    Finally, students will learn how to find solutions and examples of physics applications in daily situations.

Materials

Required Textbook:  Physics: Calculus, 2nd ed, by Eugene Hecht.  Combined Vol. 1 and Vol. 2.

Lab Notebook: Each student must also possess and use a hard-bound (no spiral bindings) laboratory notebook for entering laboratory descriptions, data, graphs, brief lab discussion, and peer writing.  These laboratory notebooks will needed for every class and laboratory sessionStudents arriving to class without the lab notebook will be required to retrieve them before beginning laboratory work.

Internet Account:  Each student will be required to use his/her internet account on a regular basis.  This includes e-mail with the instructor and a place to store data acquired in the laboratory.  In laboratory sessions that require data acquisition, the data may be stored in a temporary directory on the laboratory computer, but each student in the lab group will be required to log onto the laboratory computer to copy the data files into his/her own server account.  This is much more secure than flash drives or floppy disks.  If the student cannot access his/her account, the Computer Services Center will gladly help, but the student must take the initiative the first week of class and persist until any problems are fixed.  It is also very important that the students save all their original laboratory data files for the duration of the semester.  Satisfactory graphics can only be created from the original data files, not from wordprocessor graphics.

E-mail address:  Announcements will often be sent to the class using e-mail and the students' email listed in Campus Web.  The student should make sure his/her e-mail address in the Campus Web is correct.  If not, the student should initiate the corrctive action with the Registrar.  It is imperative that students access their campus e-mail on a regular basis.

MOODLE registry.  Many assignments will be on-line assignments and simulations done on the College Course Management system: MOODLE.  In order for students to be properly enrolled in the Physics I MOODLE account, they must enter their name and WWC e-mail address into MOODLE.  This is done only once: 1) go to the MOODLE page: http://moodle.warren-wilson.edu//login/index.php ; 2)login with your e-mail ID and password.  You may then enroll in the MOODLE Physics I class with the password given in class.  The enrollment key is _____________.  Some assignments will be done totally on-line.   All assignments (HW, quizzes, labs, exams) will have their scores and grades entered into Moodle so students can check their course record at any time.

Physics Activities and Evaluation

Each week the class activities will be centered around a particular laboratory concept.  The whole class meets as a single group on Monday and Wednesday.  Smaller groups meet for "lab" on Tuesday and Thursday.  Class time (M, W) will be spent on Interactive Lecture Demonstrations (ILDs), making predictions, peer writing, illustrating concepts, and assignments.  (Peer writing will taper off in the final third of the course).  Lectures will be minimal, and the lab notebook will be needed at every class meeting.  Because of the major amount of time spent with activities relating to the physics concepts, many parts of the textbook will not be discussed in class at all.  The student should read all the assigned chapters.

Evaluation for Physics I follows the following formula:

34% - Labs - All notebook eval - Thursday; half have reports, drafts Monday, final 2nd Monday.
13% - Notebooks.  All 13 experiments will have an instant notebook evaluation
21% - Lab reports.  7 of the experiments will be written up as word-processed lab reports.
15% - Homework problems - due Mondays
16% - Simulations and on-line assignments weekly
35% - Exams

Labs - 34%  Lab time (T, Th) will involve written instructions for each week's experiment.  All the data, calculations, computer output, graphs, etc. will be entered in the lab notebooks.  Many experiments will use the computer to record and graph the data.  The computer data must be fastened (tape or staples) into the laboratory notebook (No loose papers).

13 experiments will be conducted during the course.  For the lab grade in the course, each student must have sufficient entries in the lab notebook for each lab (13%).  Each student will write a lab report (draft and final) for 7 of the experiments. (21%)

Lab notebooks - 13%.  Each student must present the laboratory notebook to the professor for instant evaluation.  The notebook will be rated "acceptable" or "unacceptable", and the student may re-submit the book after making the adjustments.  The notebook should be acceptable by the end of the Thursday lab session.  If not, the student must complete the notebook by 4:00 pm on Friday at the professor's office.  The criteria for acceptibility include:

The rationales for the notebook grading are that science students must learn the importance of retrievable laboratory records; lab notebooks are sometimes regarded as legal documents in a professional setting; the students need to learn the value of preventing losses of loose papers.

Lab reports - 21%.  Only 7 of the lab experiments need be reported as written, word-processed reports.  (All laboratories require a notebook instant evaluation, however).  Each student chooses which experiments for which he/she will write reports.  If the student submits 8 reports, the best 7 will be counted.  More than 8 reports from any student will not be evaluated. 

Each written report requires a draft in electronic form (word processed document as an e-mail attachment).  The deadline for the draft is Monday after the lab week (except days when exams are given), then the deadlines are Tuesday.  Drafts arriving after the deadline will not be evaluated, and the student will not have the benefit of feedback for writing the final report.  Professor's comments will be e-mailed back to the students later in the week, and the final paper report is due the following Monday (unless the following Monday is an exam date).  The lab grading rubric is displayed at: LabGradeRubric.html.  The written lab reports are graded on a scale of 0..100.  If the electronic draft is complete, a preliminary grade will be assigned.  If the student is satisfied with the grade on the draft, a final written report is not needed and the draft grade will become the recorded grade. 

Late reports.  If a written report is late (between 1 day and 1 week) it will suffer a 10% lateness penalty (10 points).  Reports more than one week overdue will not be evaluated unless there is a valid medical excuse or family emergency.  Any excuse must be documented by medical provider or Student Services.

Homework Problem Assignments - 15%.  Each week several homework problems will be assigned.  The assignments will be published on the schedule page.  These solutions are due each Monday (except on exam dates - then they are due Tuesday).  Same lateness policy as with the lab assignments.  All homework assignments are expected to be completed for the full 12% contribution to the grade.

Simulation "Quizzes"- 16% - in MOODLE.

Each week a simulation or on-line assignment will be posted on the MOODLE page.  Each assignment will linked on the schedule page.  The student must consult the schedule page on a regular basis in order to obtain the assignments.  The assignment due dates will be clearly indicated.  These assignments will involve the Internet, engaging in computer simulations, making predictions, and discussing the results - especially how the results differ from the predictions and resolving the discrepancies between predictions and results.  Students will submit the mid-week assignments on-line through the MOODLE system.  Each assignment will close (not be available) after a closing date except for a non-credit review.

Computer graphics in reports 
At least one laboratory report will be totally electronic - all materials including schematic diagrams of the apparatus, graphical results, will be electronically included in the report - not paper-pasted onto the paper.  At least one diagram must be drawn with computer vector drawing tools (not "Paint").  Excellent drawing tools are available in Open Office - a free multi-platform program and maintained on the WWC computer labs.  The Open Office drawing tools are considered superior to the Microsoft drawing tools, although either may be used.  A workshop on computer schematic drawings will be held late in the course.

Exams - 35%  The four hour exams will are scheduled:
Mon. Sep. 15,  2008
Mon. Oct. 13,  2008
Mon. Nov.17,  2008
Wed. Dec. 17, 2008
The exams will consist primarily of written description of the physics concepts, but will also include problem solving and material learned in the laboratory.

If a student misses an exam due to alarm clock failure (including electrical failure), he/she may take a make-up for the test within 24 hours for 50% maximum possible credit.  The student should have a back-up alarm clock (battery or wind-up).  Documented legitimate absences (sickness, family emergency, pre-arranged athletic events) will be allowed full make-up, but the absences will be counted.

Peer Writing and discussion.  A portion of each MW class period will be devoted to writing about one or more physics concepts and sharing the writing with one's peers.  Topics may include discussions about the assigned textbook reading, an interactive lab demonstration, or a review of previous material.  Students will write essays in their lab notebooks, then share with peers and have a discussion session with the peers.  Collaboratively, each "peer pair" should produce a better discussion in both the notebooks.  The peer writing will not be collected, but serves as practice describing physics and "writing-to-learn".

Class attendance.   Because a substantial amount of physics learning takes place in the classroom, regular attendance is required.   Three absences are allowed with no penalty (excused or otherwise).  After three absences, additional absences (excused or otherwise) will result in half a grade penalty (2 points out of 100 points) in the final course score.  Extended illness (more than two consecutive classes) will be granted special consideration if adequately documented by attending medical personnel.  Lateness to class (between 1 and 30 minutes according to the classroom clock) will be counted as half an absence.  Students arriving beyond 30 minutes late will be counted as absent.  If the professor is late, each student arriving before the instructor will have one lateness (or half an absence) canceled.  The late professor rule holds only for Monday, Wednesday sessions.

Extra credit.  There will be several opportunities to attend special lectures or special astronomy observation sessions.  These events will be announced to qualify for credit.  If the student attends these events, he/she must write a brief summary and submit it to the instructor.  Each pre-approved event that is adequately summarized will receive 2 points credit on the final course score up to a maximum of 6 points.  This could be the difference between a B and an A grade in borderline cases.

Classroom Protocol.  Students are expected to arrive on time and stay in class until the class period ends.  If a student knows in advance that she/he will need to leave early, she/he should notify the professor before the class period begins.  Students are expected to treat the professor and fellow students with respect.  For example, students must not disrupt class by leaving and reentering during class, blatantly falling asleep in class, or by eating during class.  Shoes must be worn at all times.

Special Needs.  A student with a diagnosed learning handicap may request special arrangements such as additional time for exams, taping class sessions, taping exam answers, using classmates' notes, etc. To request academic accommodations due to a disability, the student must arrange with Ms Deborah Braden - the Educational Access Coordinator, (Dodge) during the first 2 weeks of classFor the legal protection of all parties, faculty may not grant the accommodations without the written approval of the Educational Access Coordinator. Ms Deborah Braden may be reached at ext. 3791 or dbraden@warren-wilson.edu in addition to Dodge House.  Students are encouraged to develop ways of coping with special learning needs, but special requests for accommodations for special needs must be made at the beginning of the semester (first 2 weeks) with the Educational Access Coordinator.  Do not make requests to the professor until the special needs have been documented.  A learning-handicapped student is still responsible for learning the material in the course.  The methods of testing and evaluation may be varied to accommodate the handicapped student.

Academic Honesty.  Any cheating on tests (copying, writing info on body or other means), or cheating on labs or homework (copying from external sources or other students without acknowledgment) will result in failure on the assignment for the first offense  and may result in failure or suspension from the course for the second offense.

Schedule of main topics (tentative):
Week 1 (Aug 25-28) Intro. To measurements and computing
Week 2 (Sept. 1-4) 1-D motion, velocity, acceleration
Week 3 (Sept. 8-11 1-D motion II - kinematics
Week 4 (Sept. 15) Exam I; (Sept. 16-18) Radioactivity and random processes
Week 5 (Sept. 22-25) Forces and motion - Newton's Laws
Week 6 (Sept 29-Oct 2) Gravity, projectiles
Week 7 (Oct. 6-9) Circular motion
Week 8 (Oct.13) Exam II; (Oct. 14-16) Impulse, momentum
Week 9 (Oct. 27-30) Electric current, resistance, voltage
Week 10  (Nov. 3-6) Wheatstone Bridge;
Week 11  (Nov. 10-13) Silicon diode
Week 12  (Nov. 17) Exam III; (Nov. 18-20) Transistor.
Week 13  (Nov. 24-25) (Tues) Workshop on computer drawings (Nov. 26 -30 - Thanksgiving Break)
Week 14  (Dec. 1-4) Energy Conservation Photogate with Transistor circuit.  Last lab experiment
Week 15  (Dec. 9) Transistor Lab Report due.
Week 16 (Dec. 15-18)  (Mon) - Energy conservation report due.  (Tues) Review/course eval.  (Wed) Exam IV.

Donald F. Collins  August, 2008 , Spidel 205, WWC 771-3702, Home: 298-4131, dcollins@warren-wilson.edu
Click Here for office hours.