PHYSICS 236 QS Fall 2001

M.W. 7:30 - 10:20 p.m.

Room S335

 

The required materials for this course are:

q       TEXT: Physics for Scientists and Engineers 5th edition by Raymond Serway and Robert Beichner.  (This is the same book you used in Physics 235)

q       SCIENTIFIC CALCULATOR: Graphing capability is useful but not required. Calculators may not be shared during quizzes and tests.

q       INSTRUCTOR: Warren Wolfe;  Office: L387;  Phone: 773-481-8391;  email; wwolfe@ccc.edu

q       OFFICE HOURS: M.W. 5:50- 7:20 PM;  T.Th. 10:20 AM- 12:20 PM

 

The course will consist of lectures, laboratory experiments, problem assignments, quizzes, and tests.

 

PROBLEM ASSIGNMENTS:  The assigned problems at the end of each chapter are to be turned in on the day announced in class, usually the second class meeting following the completion of the chapter. One point of credit are given for each on time assignment. Late assignments receive no credit. It is important for you to keep up to date on your assignments. Homework is the single most important part of the course. The quizzes and tests are derived from these problems, so be sure you understand how to do all of them. Get help with those you have trouble with.

 

LABORATORY EXPERIMENTS are to be done during the assigned class period. Reports are due the following class. Each on time lab report has a value of two points.

 

QUIZZES will be given from time to time, always announced during the preceding class. There will be approximately twelve quizzes during the semester, each of value ten points. Only your ten highest quizzes will count toward your grade. Each quiz covers one chapter or less.

 

TESTS: There will be two 100 point tests, each covering one unit. A final exam, also worth 100 points, will cover the entire course with emphasis on the third unit. You may prepare a list of formulas (but no class notes or worked out problems) to consult during each test. You may not use a formula sheet during quizzes however.

 

MISSED QUIZZES AND TESTS: Missed quizzes may not be made up, so it is your responsibility to take at least ten quizzes. If a test must be missed because of EMERGENCY reasons, notify me BY THE DAY OF THE TEST (773-481-8391). Be prepared to document your reason for absence. Under these conditions a makeup test will be given but the makeup may be more difficult than the test given to the class. Due to equipment and room availability problems, labs cannot be made up.

 

BONUS PROBLEMS will be assigned occasionally so that you may earn extra credit. These problems are optional.

 

ATTENDANCE: If you miss two of the first three classes you will be dropped. If you do not attend class during the two weeks before midterm, you will be dropped. If you do not submit measurable work, you will be dropped. If you wish to withdraw from the class, it is your responsibility to do so officially by Nov 26. If you simply quit coming to class, you will receive a grade of F. If you anticipate that you will have to miss several classes please inform me in advance.

 

ASSISTANCE: I am available during my office hours in room L387 to answer questions and help with your assignments.

q       My office hours are M.W. 5:50 – 7:20 p.m. and T.Th 10:20 a.m – 12:20 p.m.

q       My phone number is 773-481-8391.

q       You may e-mail me at wwolfe@ccc.edu.

q       There is a web site for this course at

     http://www.ccc.edu/wright/science/physics236/physics236.html

q       Tutoring is also available in the library. See the bulletin board for details.

                                                                                                                  

ADDITIONAL SOURCES OF HELP: A “Student Solutions Manual and Study Guide” by Gordon, McGrew, and Serway is available. It contains fully worked out problems and general hints about problem solving techniques. You might consider “aftermarket” books such as the Schaum’s Outline Series which contain many worked out example problems. In addition the publishers of the textbook maintain a helpful Web Site at http://www.harcourtcollege.com/physics/pse/student

 

PREREQUISITES: You must have completed Physics 235 and Math 207 and be currently registered in Math 208. It is important that you be well informed in:

q       Kinematics: Chapters 2, 3, 4

q       Newton's Laws of Motion: Chapters 5, 6

q       Energy and Momentum: Chapters 7, 8, 9

q       Rotation: Chapters 10, 11

q       Differentiation and Integration: See appendix B in Serway and your math book.

 

GRADING POLICY: Your final grade is determined as follows:

a) Calculate your cumulative score by adding the points you received on quizzes, tests, homework, lab reports, and bonus problems.

b) Calculate the base score by adding all the points you could have earned, but do not include bonuses.

c) Divide your cumulative score by the base score and convert to per cent.

d) Letter grades: A: 90%-100%   B: 80%-89%  C: 65%-79%   D: 50%-64%  F: 0-49% 

 

CODE OF ETHICS  You have been given a copy of the Physical Science Department Code of Ethics. I enforce it.

 

You should keep all the papers that I return to you. In the event of a suspected error about your grade you will need them to document your score. Also they are helpful when preparing for tests. From time to time I will post a current record of all students’ performances on the bulletin board. Be sure to check it and report any discrepancies to me.

 

PROBLEM AND LABORATORY ASSIGNMENTS

 

Unit 1: Electric Force, Field, Potential, Capacitance

Chapter 23: 2, 7, 10, 13, 16, 18, 19, 21, 25, 28, 29a, 36, 43, 47, 49

Chapter 24: 1, 4, 5, 12, 21, 27, 31, 34, 35, 37, 39, 45, 48

Chapter 25: 1, 3, 6, 8, 15, 18, 31, 32, 33, 37, 38, 43, 45, 46, 48, 57, 61

Chapter 26: 7, 9, 11, 14, 17, 18, 21, 22, 27, 28, 32, 33, 41, 46, 50, 61

Labs:           Electric Fields

 

 

Unit 2: DC Circuits, Magnetic Force and Field

Chapter 27: 1, 3, 10, 15, 19, 24, 25, 29, 30, 37, 42, 47, 53, 63                                

Chapter 28: 1, 3, 5, 9, 12, 15, 22, 26, 29, 31, 33, 37, 38, 39, 57

Chapter 29: 1, 3, 4, 5, 11, 13, 18, 19, 23, 25, 32, 34, 37, 38, 41, 46, 59

Chapter 30: 1 2, 3, 5, 8, 13, 15, 17, 20, 21, 24, 30, 33, 36, 39

Labs:           DC circuits, RC Circuits, Electric Meters

 

Unit 3: Electromagnetic Induction, AC Circuits, Electromagnetic Waves

Chapter 31: 1, 2, 4, 9, 10, 11, 13, 20, 21, 26, 32, 35, 37, 41, 53, 70

Chapter 32: 1, 4, 6, 9, 11, 17, 19, 20, 23, 27, 32, 33, 36, 40, 41, 48, 51, 56, 61, 71

Chapter 33: 1, 4, 7, 9, 13, 17, 19, 25, 26, 27, 29, 31, 37, 38, 42, 45, 47, 49, 54, 56

Chapter 34: 3, 5, 7, 12, 18, 28, 29, 41, 44, 53

Labs:           AC Circuits, Rectifier Circuits

 

 

ANSWERS TO EVEN NUMBERED PROBLEMS

 

Chapter 23:  2a) 1.59 x 10-9  N,  (b) 1.24 x 1036,  (c) 8.61 x 10-11 C/kg; 

10a) ;  16a) (-599 i - 2700 j)N/C,  (b) (-3.00 i - 13.5 j) mN; 

18a) 1.29 x 104 j N/C,  (b) –0.0386 j N;  36a) 2.00 x 10-10C,  (b) 1.41 x 10-10C;

36c) 5.89 x 10-11C

 

Chapter 24: 4) 0;  34a) 713 nC,  (b) 5.70 nC;  48a) –q/4pa2,  (b) (Q+q)/4pb2

 

Chapter 25: 6a) –6.00 x 10-4 J,  (b) –50.0 V;  8a) 59 V,  (b) 4.55 x 106 m/s; 

18a) –4.33 m,  (b) 0.667 m and –2.00 m;  32) 7.26 x 106 m/s;  38a) 0,  (b) kQ/r2,

46) kl(p + 2ln3);  48a) 45 MV/m, 30 MV/m,  (b) 1.8 MV

 

Chapter 26: 14) mgd tanq/q;  18a) 3.53 mF,  (b) 6.35 V and 2.56 V,  (c) 31.8 mC                 

22) 1.83C;  28) 6.04 mF;  32a) 0.15 L,  (b) 268 V;  46a) 239 pC,  (b) 118 pF, 3.12 V, 

(c) –45.5 nJ;  50a) (-9.10 x 10-12 i + 8.40 x 10-12 j) C.m,  (b) –2.06 x 10-8 k N.m


Chapter 27: 10a) 2.21 x 10-7 m,  (b) No, 6.49 mV;  24) 378 W;  30) RNi  = 5560 W,

RC = 4440 W;  42a) 3.17 m,  (b) 340 W

 

Chapter 28: 12) 2.00 W, 3.00 W, 4.00 W, 5.00 W, 6.00 W, 7.00 W, 9.00 W, 0.923 W,

1.20 W, 1.33 W, 1.71 W, 1.56 W, 2.00 W, 3.71 W, 4.33 W, 5.22 W;  22a) 0.285 mA,

3.08 mA, 2.69 mA,  (b) c is higher by 69.2 v;  38) 0.113 W

 

Chapter 29: 4a) 8.67 x 10-14 N,  (b) 5.19 x 1013 m/s2; 18) ab: 0, bc: -40 i mN, 

cd: -40 k mN, da: (40 i + 40 k) mN;  32) 1.98 cm; 34) 0.0656 T;  38) 8;  46) 3.00 T

Chapter 30: 2) 261 nT (into the page);  8)                                                                                      

 

20) 5.40 cm;  24a) 10.0 mT,  (b) 2.50 cm;  30a) 3.98 kA,  (b) 39.8 kN/m (radially outward); 

36a) 7.19 x 1011 V/m.s,  (b) 2.00 x 107 T

 

Chapter 31: 2) 0.800 A;  4b) 3.79 mV,  (c) 28.0 mV;  10) –14.2 cos(120t) mV;

20) 1.00 mV;  26a) to the right,  (b) to the right,  (c) to the right, (d) into the paper; 

 

32a) 8.00 x 10-21 N, clockwise,  (b) 1.33 s;  70)

 

 

Chapter 32: 4) 7800 turns/m;  6) 2.37 mV;  20) 92.8 V;  26a) 1.00 kW,  (b) 3.00 ms;

32a) 8.06 x 106 J/m3,  (b) 6.32 kJ;  36a) 0.500 J,  (b) 17 W,  (c) 11.0 W;  40) 1.73 mH;

48) 0.400 A;  56a) 2.51 kHz,  (b) 69.9 W

 

Chapter 33: 4a) 25.3 rad/s, (b) 0.114 s;  38a) 3.56 Hz, (b) 5.00 A, (c) 281 mF,

(d) 2.24 kV;  42a) 9.23 V, (b) 4.55 A, (c) 42.0 W;  56) 99.6 mH

 

Chapter 34: 12) 49.5 mV;  18a) 0, (b) (11.5 i – 28.6 j )W/m2 ;  28) 6.67 x 10-10 N;

44) 60 km