Physics 122: Fundamentals of Physics II

                         Spring 2005 

                    Sections 0201-0206 


 

General Course Information

 

Instructor: Admin Asst:
Donald N. Langenberg Stephanie Noel
Rm. 4211 Toll Physics Building Rm. 4211 Toll Physics Building
301-405-9983 301-405-6052
dnl@usmd.edu sjnoel@umd.edu

     

 

Teaching Assistants:

 

TA Name Section Room Phone Email
Brian Christy 0202 4223 X56192 bchristy@umd.edu
Ardeshir (Payman) Eftekharzadeh

0203

0204

4210 X56191 eftekhar@wam.umd.edu
Chris Eling 0205 4205 X56028 cteling@physics.umd.edu
Joe Harris 0201 4223 X561982 joeharri@physics.umd.edu

 

 

Lectures:  Tuesdays and Thursdays, 12:30-1:45, Rm. 1410, Toll Physics Building

 

Prerequisites:  Successful completion of Physics 121 or equivalent course, and a good understanding of algebra and trigonometry (at the level of Math 151).

Books:  You are required to have the Physics 122 Tutorial and Laboratory Manual, Spring 2005 Edition, published by the Department of Physics.

            You may find College Physics, by Serway & Faughn, 6th Edition, Thompson -Brooks Cole Publishers, helpful as a reference and as a source of practice problems.  This book is available in two forms:  two volumes (I and II), and both volumes bound together.  You may already have Volume I from Physics 121.  In Physics 122 we will be covering subjects from both volumes.

            We will not be using this book as the course text in the conventional manner.  We will not be assigning specific sections of it for study, nor will we routinely be using problems from it for homework assignments.  Nevertheless, study time spent with this book will not be wasted.

 

Remote Answering Device:  You are required to have in lecture – and to use -- a remote answering device (RAD), colloquially known as a “clicker.”  Its purpose is to make the “lecture” sessions an interactive learning environment for all students.  You will need to register your clicker (or re-register it if you used it in Physics 121) in order to get onto the database for Physics 122.  There’s a registration link on the Physics Department home page at www.physics.umd.edu/

 

What’s This Course About?

 

There are two different but equally important answers to that question.

 

The first is that, like Physics 121, this course is intended to help you learn how to think about and to understand fundamental physical phenomena in the universe you inhabit, and to apply your knowledge to circumstances you will undoubtedly encounter in your careers.  Its design is quite unconventional, and is based on several decades of research on how humans learn things generally, and learn physics in particular.  You will find it rather unlike most science courses you have taken.  We’re less concerned about the answers you give to questions about the natural world than we are with how you go about creating good questions worth answering.

 

You will find on the class Web site a set of notes titled How to Learn.  It is recommended that you read these, perhaps even study them.  You won’t be tested on them, but your success in Physics 122 may well depend substantially on how you respond to the advice these notes contain.

 

As you go along, keep in mind Albert Einstein’s assertion (1936):  The whole of science is nothing more than a refinement of everyday thinking.”

 

Many students in this course or its predecessor express discomfort about its style and structure.  In one way or another, they indicate that their primary concern is just learning what they have to know to get a good grade, to do well on the MCAT or equivalent exam, and to gain admission to their desired post-baccalaureate professional school.  Questions and uncertainty bother them.  They just want the right answers.  Take our word for it.  In life, as in physics, questions and uncertainty rule.  The right answers are hard to come by, where they exist, and in the long run knowing how to figure out the right questions to ask is better than knowing the right answers.

 

The second answer is more prosaic.  It’s about what we are going to study in Physics 122.  Here’s a partial list:

 

            Things that oscillate; masses on springs, pendula, etc.

            How pulses propagate as waves (think “tsunamis”)

            Electric charge and how it behaves.  (Did Ben Franklin get it right?)

            What’s a field?  And, is there anything else in the universe?

            Simple electrical circuits or, how to fix your reading lamp without killing yourself.

            Magnets.  The Earth, refrigerator magnets, and where your electricity comes from.

Light, or, what you see may or may not be what you see.  And, incidentally, what do you see,
and how do you know you see it?
Light as a wave.  And, if we have time, light as a particle.  Which is it?  

 

Now Back to Practical Matters:

 

Following is a tentative calendar of major events during the semester:

 

Week Beginning

Lecture

Tutorial

Laboratory

01/27/05

Survey and Introduction

  None

     None

01/31/05

Things that Oscillate

ILD 8

Homework (HW) 1

T1 Harmonic Oscillation

L0 Excel

02/07/05

Pulses and Waves

ILD 9

HW 2

T2 Pulses

L1 Mass on Spring

02/14/05

Electrostatics

ILD 10

HW 3

T3 Electrostatics

L2 Mass on Spring

02/21/05

Currents and Circuits

HW 4

T4 Fields

L3 Electrical Resistance

02/28/05

More Circuits

HW5

T5 DC Circuits

L4 Electrical Resistance

03/07/05

Circuits and Magnetism

HW 6

T6 DC Circuits

Lab Quiz 1

03/14/05

MIDTERM EXAM (03/17)

HW 7

T7 Magnets

L5 Magnetic Interactions

03/21/05

           SPRING

           BREAK

             !!!

03/28/05

Review Midterm

HW 8

T8 Magnetic Interactions

L6 Magnetic Interactions

04/04/05

Light and Refraction

HW 9

T9 Light and Shadow

L7 Refraction

04/11/05

Light and Images

ILD 11

HW 10

T10 How to Tell Where Things Are

L8 Refraction

04/18/05

Light and Interference

HW 11

T11 Real Images

L9 Interference

04/25/05

MIDTERM 2

HW 12

T12 Two-Source Interference

L10 Interference

05/02/05

Structure of Matter

Photons

T13 Wave Properties of Light

Lab Quiz 2

05/09/05

Last Day (05/12/05)

 

 

 

 

 

 

The Elements of the Course:

 

We assume you are responsible students who are prepared to assume responsibility for taking full advantage of the learning experience this course is designed to provide to you.  Therefore, the following is intended as advice to the wise, not as statements of requirements.

 

Lectures:  We will do our best to make attendance at lectures worth while to you.  They will involve your active participation via the use of your clickers, interactions with fellow students, and feedback to the instructor.  This semester your responses to clicker questions will be tracked and will earn “participation points.”   They will be modest in quantity, but may have some weight at the end of the course in determining your final grade.

Tutorials:  These will provide additional opportunities for give-and-take between you, your fellow students, and your TA.  It is important that you give your TA ample opportunity to understand what you are thinking and how he can help you come to an adequate understanding of the subject at hand. 

Laboratories:  Participation in laboratories is required!  Physics Department policy is that you must complete every lab in order to pass the course!  There will be an opportunity for making up missed labs for excused absences. 

Homework:  Doing the homework is perhaps the single most important element of the course.  Sets of homework questions will be assigned weekly, due the following week.  They will be graded by your TA.  Typically, one question on each set will be graded in detail, and the others will be reviewed to ascertain whether you’ve made a good try at responding to them.  Solutions to each set will be posted on the class Web site.  You should review these solutions carefully as a routine part of your work in the course.  Consider this as a crucial part of completing the Learning Cycle described in the How to Learn notes posted on the class Web site. 

Exams:  There will be two midterm exams (tentative dates:  March 17 and April 28 (12:30-1:45), each covering the material preceding it since the beginning of the course or the previous exam.  There will be a final exam, time to be determined, covering all of the course material.  In order to reduce the effect of time pressures on you, the final exam will be designed as a two-hour exam, but you will be given four hours to complete the exam.  Expect questions designed to reveal your thinking ability, not what you’ve memorized without understanding.

Each midterm exam will be followed by a makeup exam the following week. If you miss a midterm, you must take the makeup.  There will also be a makeup exam for the final exam.

Course Center:  The course center this semester will be in the Slawsky Center located in the central hall on the first floor of the Physics Building.  (Last semester’s center in the basement has been converted into the tutorial room for Physics 122).  The TAs will hold office hours there on a schedule to be determined and posted.  It is recommended that you make a habit of using the course center as a place where you can wrestle with physics concepts and homework questions with help from the TAs and from your fellow students.

Grading:  Point scores from the various elements of the course will be weighted as follows:

            Midterm 1:                   150 points

            Midterm 2:                   150 points

            Final Exam:                   300 points

            Homework:                  200 points

            Laboratory:                  200 points

            Participation:                   50 points

 

                                Total      1000 points

 

Yes, the arithmetic is a bit out of kilter, but we expect that not most of you will not exceed 1000 points.  The participation points here are mostly clicker responses.  You get a point per response, regardless of the answer you give.  Along the way, there may be other ways to get participation points (taking diagnostic surveys for education research, finding mistakes in homework problems or solutions, etc.)  In addition, there are participation points built into the grading system for the laboratories.  Final grades will be “curved”.

 

Excuses:  If you have a valid excuse for missing an exam or homework, see your instructor to arrange what to do about it, beforehand if at all possible.  Ex post facto (after the fact) excuses will require validation and may not be acceptable

 

Special Needs:  If you have any special needs relevant to this course, please contact the instructor.

 

Education research:  As noted at the beginning, the style and format of this course are based on research on the teaching and learning of physics.  That research is ongoing, so this course can be viewed as an example of research in progress.  To that end, there may be diagnostic surveys at the beginning and end of the course, and you may be asked for your consent to use videotapes of your work and photocopies of assignments as data for our research.  You'll get participation points for filling in the surveys, but your answers to the surveys will have no effect on your grade in the course.  Nor will it have any effect on your grade whether you grant or decline consent, if we ask for it.

 

Finally, please see the University policy regarding the Honor Pledge.

 

 

GOOD LUCK, AND REMEMBER, “PHYSICS IS PHUN!”