PHYSICS 221 - SYLLABUS
SPRING 2004
LECTURE HOURS:
MWF
8:00-8:50 AM
LECTURER: Dr. Anatoli Frishman 15 Physics
email: frishman@iastate.edu
LECTURE HOURS:
MWF
MWF
294-xxxx
9:00-9:50 AM
10:00-10:50 AM
LECTURER: Dr. David Atwood
A527 Physics Addition
email: atwood@iastate.gov
294-6996
All lectures are held in Room 5, Physics Hall
COURSE SECRETARY: Judy Zunkel
12 Physics
email: jzunkel@iastate.edu
294-4936
TEXTBOOK: University Physics (11th Edition), Young and Freedman (Pearson, Addison
Wesley 2003)
ADDITIONAL MATERIALS:
Physics 221 Laboratory Manual (University Bookstore)
Physics 221 Laboratory Information and Schedule Sheet
(Distributed by TA)
Course Web Page: http://www.public.iastate.edu/~atwood/phy221.html
This course uses WebCT extensively for assignments and communication. All students
must obtain ISUnet ID’s. Your first graded assignment on WebCT is due 1:00 am January
21, 2004. See course Web page for more details.
THIS COURSE HAS EVENING EXAMS. Note the exam dates of
• Thursday, February 12 8:00pm-9:30pm
• Thursday, March 11
8:00pm-9:30pm
• Thursday, April 15
8:00pm-9:30pm
on the schedule below and MAKE NO OTHER PLANS FOR THESE EVENINGS.
Goals of Course
(1) Introduce the fundamental concepts of Classical Physics and some of their implications: The
topics covered follow four main Themes:
a. The laws of motion (Lectures 1-11): The concepts of velocity, acceleration and Force and
mass are introduced. This allows us to discuss Newton’s three laws, the foundation of
Classical Physics.
b. Working with the laws of motion-conserved quantities (Lectures 12-25): It follows from
Newton’s laws that energy, linear momentum and angular momentum are preserved in
any physical interaction. We will introduce these concepts that provide important insight
to understanding physical processes and powerful tools for solving problems.
c. Forces of nature (Lectures 26-35): We will discuss two fundamental forces of nature: The
electric force and gravitation. We will describe the laws that govern these forces, the
description of their action in terms of fields and some of the phenomena that follow from
these laws.
d. Application to electrical circuits (Lectures 36-41): Simple electric circuits containing
batteries, resistors and capacitors and their behavior will be discussed from the point of
view of classical physics.
(2) Conceptual Understanding: This course is designed to prepare you for a career in Science or
Engineering. As such much more is required than the memorization of a few formulas. In order
for physics to be useful to you as a scientist or engineer, you must have a firm grasp of the key
concepts of physics. The InterACTive learning exercises (ACTs) during class as well as some of
the Recitation activities and problems sets are designed to further this goal.
(3) Key Scientific and Engineering Skills
a. Problem Solving: Since most students in this course have chosen scientific or
engineering career paths where your primary activity will be to solve problems, it is
important at this stage that you adopt a systematic approach to solving problems. This
will therefore be a focus of both in lectures, recitations and the written assignments.
b. Scientific Communication: Both written and verbal communications are important in
learning physics and will form a key skill in your future careers. The recitations, labs and
written assignments will allow students opportunities for students to develop these skills.
Course of Study
Date
Lecture number and topics
Reading Assignment
M Jan 12
W Jan 14
F Jan 16
1. Introduction
2. Scalar products; components
3. 1-Dim. motion
M Jan 19
W Jan 21
F Jan 23
ML KING DAY NO LECTURE
4. Free fall
5. 2-Dim motion; projectiles
2.5-2.6 [note 2]
3.1-3.3
M Jan 26
W Jan 28
F Jan 30
6. Circular motion
7. Relative motion
8. Forces; Newton’s Laws 1 and 2
3.4
3.5
4.1-4.4
M Feb 2
W Feb 4
F Feb 6
9. Newton’s 3rd law; Free body diagrams
10. Applications of Newton’s laws
11. Friction; Circular motion dynamics
4.5-4.6
5.1-5.2
5.3-5.4
M Feb 9
W Feb 11
R Feb 12
F Feb 13
12. Work and kinetic energy
13. Work energy theorem; Power
Exam 1: 8:00pm-9:30pm: Covers Lectures 1-11
No Lecture
6.1-6.2
6.3-6.4 [note 3]
M Feb 16
W Feb 18
F Feb 20
14. Energy conservation; Potential energy
15. Conservative and non-cons. Forces
16. Energy diagrams
7.1-7.2
7.3-7.4
7.5
M Feb 23
W Feb 25
F Feb 27
17. Linear momentum and impulse
18. Elastic and inelastic collisions
19. Center of mass
8.1-8.2
8.3-8.4
8.5-8.6
M Mar 1
W Mar 3
F Mar 5
20. Rotation of a rigid body
21. Moment of inertia
22. Torque
9.1-9.3
9.4-9.5
10.1-10.3
M Mar 8
W Mar 10
23. Conservation of angular momentum
24. Statics
10.4-10.6
11.1-11.2 [note 3]
1.1-1.7
1.7-1.10
2.1-2.4 [note 1]
R Mar 11
F Mar 12
Exam 2: 8:00pm-9:30pm: Emphasizes 12-22
No Lecture
Mar 13-Mar 21 SPRING BREAK NO CLASS
M Mar 22
W Mar 24
F Mar 26
25. Solving Equlibrium Problems
26. Newton’s law of gravity
27. Orbital Motion
11.3
12.1-12.3
12.4-12.6
M Mar 29
W Mar 31
F Apr 2
28. Periodic motion; The pendulum
29. Damped oscillations
30. Electric charge; Coulomb’s law
13.1-13.5
13.7
21.1-21.3
M Apr 5
W Apr 7
F Apr 9
31. Elec. field; Field Lines; Superposition
32. Electric flux; Gauss’s law
33. Examples of Gauss’s law
21.4-21.7
22.1-22.3
22.4-22.5
M Apr 12
W Apr 14
R Apr 15
F Apr 16
34. Electrical Potential
35. Equipotentials
Exam 3: 8:00pm-9:30pm: Emphasizes 23-33
No Lecture
23.1-23.3
23.4-23.5 [note 3]
M Apr 19
W Apr 21
F Apr 23
36. Capacitors
37. Energy Storage & Dielectrics
38. Current; Resistance; Ohm’s law
24.1-24.2
24.5
25.1-25.3
M Apr 26
39. Resistors; Circuits; Power
W Apr 28
40. Networks; Kirkchhoff’s rules
F Apr 30
41. RC circuits
Exam Week (time TBA) 120 minute Final Exam (Comprehensive)
25.4-25.5
26.1-26.2
26.3-26.4 [note 3]
Note 1: The grade the Lecture 3 warm up quiz is not counted.
Note 2: The warm up quiz for Lecture 4 is the first one where the grade is counted.
Note 3: Warm up quizzes are provided the day before exams for study purposes; the grade is not counted.
ASSIGNMENTS
(1) Each lecture has a reading assignment from the textbook and an associated warm up quiz on WebCT.
It is strongly recommended that you read these assignments before the lecture, so you have some
acquaintance with the material before the lecture; then you will learn more from the lecture and be able to
follow it easier. The warm up quiz is due 1:00am of the day of the lecture and, except as noted above, is
the “warm up exercises” component of your grade.
(2) The 14 written homework assignments are made up of questions from the end of the chapters in the
text. These questions will consist of a combination of questions about the physics principles and of
complex problems, which apply the principles. The problem solutions, carefully and neatly written out,
must be turned in at your Tuesday recitation period according to the chart below. The average of the best
13 of the 14 homework assignments will constitute the “homework” component of your grade. Late
homework cannot be accepted since the solutions will be posted on WebCT shortly after the homework is
collected.
Some of the problems should be written up according to the Problem Solving Strategy discussed in Y&F
section 1.2. Your recitation instructor will discuss this with you further the first recitation meeting. The
other problems may be written up informally. In all cases an answer which is not justified is not
acceptable. Also, a numerical answer is not correct if it does not contain the appropriate units. For
maximum clarity, the units should be carried through from the beginning to the end of a problem.
The due dates for the written homework assignments are as follows:
Homework Due Dates
HW1: T Jan 20
HW2: T Jan 27
HW3: T Feb 3
HW6: T Feb 24
HW7: T Mar 2
HW8: T Mar 9
HW11: T Apr 6
HW11: T Apr 13
HW12: T Apr 20
* HW15 for study purposes only and not graded.
HW4: T Feb 10
HW9: T Mar 23
HW13: T Apr 27
HW5: T Feb 17
HW10: T Mar 30
HW15*
(3) During some of the recitations various exercises will be given which will be graded. These will form
the “recitation exercises” component of your final grade.
EVENING EXAMS
Evening exams are used in this course so that all students can take the same exam at the same time and
thus be graded on the same basis. Room assignments and instructions will be issued in advance of the
first exam, and will be posted in the 221 glass cases in the hallway outside Room 5 as well as on WebCT.
The exams will consist of multiple choice questions and machine graded answer (bubble) sheets will be
used.
Bring to the exam a Number 2 pencil and a scientific calculator. Graphing calculators will be allowed
during the exams. PDA’s, Cell Phones, Laptops and any device which can store large quantities of text or
communicate are not allowed. Students are also allowed to bring an “aid sheet”, an 8½×11 sheet of paper
with notes on both sides.
Dates and times for night exams for all large courses are coordinated and set by the University
administration and cannot be changed by the Department of Physics and Astronomy. It is assumed that
all students enrolled in Physics 221 have these dates available to take the exams.
The recitation before each exam there will be a review of some of the more important principles,
equations and applications that you need to know for the exam. To study for an exam, review your
lecture notes and text to make sure you understand the physics principles and concepts and their
relationships to each other. For applications, review the example problems given in lecture and in the text
and your homework problems and other problems at the back of each Chapter in the text.
If you believe you may have been misgraded on an exam question, you must return your exam, together
with a written note explaining the problem, at the recitation at which the exam is returned to you.
POLICY FOR MAKEUP EXAMS
Make-up exams will be allowed only in exceptional circumstances, such as illness, family emergency or
an official university-sponsored activity such as a performance or a regularly-scheduled evening class.
Students who know in advance that they will miss an exam must explain the circumstances and seek
permission for a make-up from Dr. Atwood well before the missed exam. Students who miss exams
because of unexpected illness or other unforeseen emergency should try to send a message (by phone, email, or through a friend) to Dr. Atwood or to the course secretary as soon as possible preferably before
the start time of the exam in order to receive permission to take the make-up exam.
COURSE GRADES are based on a maximum possible numerical score of 100 as follows:
Three 90 minute Examinations worth 13 points each
Final examination
Laboratory score
Homework
Warm up Exercises
Recitation Exercises
Total
39 points
29 points
8 points
15 points
5 points
4 points
100 points
The final exam will have comprehensive components. The final exam will include problems based on
lecture/textbook/recitation material, totaling 84% and laboratory questions totaling 16% of the final exam.
Each student, even those with a lab waiver, is responsible for knowing the material covered in the lab
questions on the final exam. Sample lab questions are posted in the glass case outside the Physics 221 lab
room.
The lab score further breaks down to 5 points for the lab activities preformed during the laboratory period
and 3 points for the prelab exercises which are administered on WebCT.
For students with a lab waiver, the Recitation/laboratory score will be half the homework portion of their
mark. For these students then, the homework will count for 24 points.
This course will be graded on an absolute basis, not on a "curve." If your numerical grade is
at least 50, 60, 70, 80, respectively, you will be guaranteed to receive a grade of D-,C-, B-, or A-,
respectively. These numbers will not be raised, but they might be lowered slightly after the final exam.
There will be + and – letter grades given.
Since the course is graded on an absolute basis, it is to your advantage to work with other students to
learn the material. Helping another student to do well will not adversely affect your own grade. We
encourage you to work together, perhaps forming study groups in your dormitories or houses. It is
important, though, that all written homework turned in to recitation be your own work, and not
copied from another student.
At the end of the course, if you believe there has been an error in the grade assigned to you, you must
submit a written note explaining the circumstances to one the lecturers in the course.
NOTE!!!:
Regardless of the numerical score, a failing grade will be given if:
(1) Any laboratory has not been satisfactorily completed, or
(2) The student has engaged in any form of academic dishonesty.
RECITATION AND LABS
Throughout the term there will be a variety of different exercises in recitation. In many cases you will
work in small groups on these problems. This approach has the advantage of enhancing your
communication skills and has been shown to improve student understanding. To take full advantage of
group exercises you should participate enthusiastically.
The grading of the written assignments is to some degree subjective. In the interest of fairness, to
compensate for different grading styles we reserve the right to adjust that portion of the grade on a per
instructor basis. This is normally not a large adjustment.
Lab schedules will be passed out in recitation. If you are repeating 221 and have successfully
completed the lab portion of Physics 221 previously, you may request an optional waiver of the
laboratory. Inquire in Room 12 for details. Note that (1) such waivers must be requested at the
beginning of the semester, and (2) if you are granted a lab waiver, you will be required to attend
and participate in recitation, and your recitation/lab grade will be based exclusively on your
recitation performance, in particular the written homework will count for 24% of your grade
instead of the 16% for non-waiver students. Students with lab waivers are still responsible for the
lab questions on the final exam.
STUDENT ASSISTANCE
There are several opportunities for students to receive assistance with the material of this course. In
particular,
Room B54 Physics will be the Physics 221 Help Room (this room is located in the basement; go down the
stairs just north of Room 78), open part of the day Mondays through Fridays. Check the schedule on the
door and on WebCT for exact times
Important announcements will be posted on WebCT. You are responsible for checking for
announcements regularly.
Supplemental Instruction will be available this semester at times and days to be announced.
SUGGESTED STUDY PLAN
Physics 221 is a five-credit course, so the university expects you to spend about 15 hours a week on this
course, counting class time. Be sure to attend lecture, recitation, and laboratory regularly: students who
do this naturally receive higher grades because of their better understanding of physics. Since class time
totals about 6 hours a week, you should spend at least 9 hours a week outside of class on the course. A
good division of this time might be:
2-3 hours a week reading the assigned textbook pages before lecture and working out the warm up
questions for the next lecture. 2-3 hours a week on a careful re-reading of the textbook assignment and
lecture notes after the relevant lecture; polish up your lecture notes at this time, and make sure you
understand everything in them. 5 hours a week working on the homework and pre-lab assignments.