Unformatted text preview: Physics 21 & 19 www.lehigh.edu/~physics/21 bb.lehigh.edu p. Home Help Logout August 19, 2007 - August 26, 2007 Announcements Course Information Staff Information Course Documents Assignments Discussion Board External Links Tools Tools Communication Course Tools Course Map Control Panel Refresh Detail View Blackboard Academic SuiteTM (7.1.467.26) Blackboard Learning SystemTM - Enterprise License 1997-2002 Blackboard Inc. All Rights Reserved. U.S. Patent No. 6,988,138 Accessibility information can be found at http://access.blackboard.com. Tue, Aug 21, 2007 -- Class Website For most class materials, visit the class website by clicking here This page is not yet complete! (August 26, 2007) Course Materials General Information Schedule and Assignments Equation Sheet Handout on Optics (version August 19, 2007) (version August 19, 2007) (version August 26, 2007) (version August 26, 2007) Textbook and Web-based Homework System The text is University Physics, by Hugh D. Young, Roger Freedman and Lewis Ford, and published by Pearson Addison Wesley. You will need only volume 2. You also need access to the web-based homework system "Mastering Physics." The bookstore will sell a combined package (the books plus online access) for $122.85, using ISBN 0321500393. You can also buy the combined package with book and online access directly from the publisher at this link for $114.67. That price includes standard shipping (1-2 day Fedex). Dear Student: In Physics 21, you will be using MasteringPhysics, an online tutorial and homework companion to your textbook. What You Need: A valid email address A student access code (packaged with your text or available for purchase at http://www.masteringphysics.com/). The zip code for your school: 18015 A "Course ID": PHYSICS21F2007 (make sure to use all caps) A "Student ID": your LIN (nine digit Lehigh Identification Number) Welcome Albert Hickman (aphickman) Instructor message for Course PHYSICS21F2007 Physics 21, Lehigh University, Fall 2007 Course Instructor: Hickman Recitation Leaders: Belony, Kanofsky, Lyu, McGeehan, and Sweeney Information for Instructors Getting Started with MasteringPhysics New Features in this Release Young/Freedman 11e-to-12e End-of-Chapter Correlation Grid (MS-Excel) Frequently Asked Questions (FAQ) Best Practices Tips for Preventing Cheating Physics 21 Fall, 2007 General Information Grading: Grades are based on the following scheme: First Exam (Oct. 4) Second Exam (Nov. 1) Five Quizzes Homework (on the web) Recitation leader's assessment Final Exam Total 100 100 50 50 50 200 550 Subject matter: Physics 21, Introductory Physics II, is a continuation of Physics 11. The general topics covered include electrostatics and magnetostatics, DC circuits, Maxwell's equations, waves, geometrical and physical optics. General Plan: Classes meet four times per week, Tuesday and Thursday in a large lecture (for 50 minutes) and Wednesday and Friday in a small recitation class. Homework assignments, which are done online, will be due before most lectures and will be discussed in the recitation the next day. Occasionally, homework will be due on a recitation day. There are two major exams during the semester, at 4:10 pm on Oct. 4 and Nov. 1. The final exam will be scheduled by the registrar. Textbook and Homework: The text is University Physics, by Young and Freedman, volume 2, 12th edition. The homework will handled by a web-based system called "Mastering Physics." Each student must obtain an access code (a 30 letter password) in order to register with the Mastering Physics website. The access code can be purchased separately or as part of a package with the textbook from the campus bookstore or from the publisher's web site. There is more information about "Mastering Physics" on the main class webpage and in other handouts. Obtaining Course Materials: Most "handouts" such as the reading assignments, schedule of lectures, and equation sheets must be downloaded from the course web page: www.lehigh.edu/~physics/21 Paper copies of these documents will not normally be distributed in class or recitation. It is the responsibility of each student to visit the course web page and obtain the appropriate documents. Quizzes: There will be five quizzes during the semester. They will be at the beginning of the recitation section on the dates announced in the schedule. No makeup quizzes will be given. Makeup Exams: Makeups will not be given for the hour exams. If a student misses an hour exam for a legitimate reason, a designated part of the final exam will be counted as the missed test. Final Exam: The date and time of the final exam are set by the Registrar and cannot be changed. Role of Recitation Leader: Each student's primary contact should be with his/her recitation leader. If you have questions or need help with an assignment, first ask your recitation leader. Each recitation leader will set his own office hours. Equation Sheet: The exams are closed book, but an equation sheet will be provided. The equation sheet is posted on the web. Students should familiarize themselves with the equation sheet by using it for homework. Attendance Policy: Attendance at lecture and recitation is expected. Attendance in recitation will be taken into account by the recitation leader when assessing each student's performance. Free Advice: Physics 21 is a fast paced course with a heavy workload. Assimilating the material presented each week is essential to understanding the following week's work. Come to class! Take notes! Keep up with the reading and homework assignments! Physics 19: Physics 19 is a one credit course for students who have taken a three credit course similar to (but less comprehensive than) Physics 21. Students taking Physics 19 should attend the first lecture on August 28 and then all the lectures and recitations beginning Tuesday, Nov. 6, 2007. They will take selected parts of the final exam. Disability: If you have a disability for which you are or may be requesting accommodations, please contact both your instructor and the Office of Academic Support Services, University Center C212 (610-758-4152) as early as possible in the semester. You must have documentation from the Academic Support Services office before accommodations can be granted. August 19, 2007 Physics 21 Fall, 2007 Date 8-28 (Tu) 8-29 (W) 8-30 (Th) 8-31 (F) 9-4 (Tu) 9-5 (W) 9-6 (Th) 9-7 (F) 9-11 (Tu) 9-12 (W) 9-13 (Th) 9-14 (F) 9-18 (Tu) 9-19 (W) 9-20 (Th) 9-21 (F) 9-25 (Tu) 9-26 9-27 9-28 10-2 10-3 (W) (Th) (F) (Tu) (W) L-3 R-3 L-4 R-4 L-5 R-5 L-6 R-6 L-7 R-7 L-8 R-8 L-9 R-9 L-10 R-10 L-11 R-11 L-12 E-1 R-12 R-13 L-13 R-14 L-14 R-15 L-15 R-16 L-2 R-2 Class L-1 R-1 Schedule and Assignments Topic Reading Electric force and electric fields for point charges, using vectors Demonstrate homework procedures; 21 14 work ex. 21.9 using vector notation; Electric fields due to continuous charge 21 57 distributions; work ex. 21-11 Work exs. 21-10 and 21-12; calculate field of disk of charge; discuss HW-2 Gauss's Law; work exs. 22-6, 7 22 15 Work exs. 22-9; discuss HW-3 Electric potential and potential difference 23 14 Quiz 1; discuss HW-4; Potential gradient; capacitance 23 5; 24 12 Work ex. 24-3; discuss HW-5 Energy density in field; dielectrics 24 35, 25 1 discuss HW-6; work exs. 24,1011 Circuits; Kirchhoff's rules 25 25; 26 12 discuss problem 24 (p 909); discuss HW-7 RC circuits 26 45 Quiz 2; discuss HW-8; work ex. 26-13 Magnetic field and the force on moving 27 15 charges Work ex. 27-4; discuss HW-9 Magnetic force on currents 27 68 discuss HW-10 Magnetic field of moving charges 28 17 Answer questions; discuss HW-11 Review session: 7:00 pm, LL270 Morning Lecture cancelled FIRST HOUR EXAM at 4:10 pm on October 4 work ex. 28-4 PACING BREAK: October 89 Return and discuss exam; discuss HW-13 Ampere's Law; magnetic materials 28 8 discuss HW-13; work ex. 28-10 Faraday's Law 29 14 discuss HW-15 Inductance; Maxwell's Equations 29 57; 30 13 discuss HW-16 Homework HW-1 due HW-2 due HW-3 due HW-4 due HW-5 due HW-6 due HW-7 due HW-8 due HW-9 due HW-10 due HW-11 due 10-4 (Th) 10-5 (F) 10-10 10-11 10-12 10-16 10-17 10-18 10-19 (W) (Th) (F) (Tu) (W) (Th) (F) no HW due HW-13 due HW-14 due HW-15 due HW-16 due Classes are Lectures (L), Recitations (R), or Exams (E). Reading should be completed before the associated class. 22 4 means chapter 22, section 4 of text. The deadline for completing each homework assignment HW-n (using the web-based system) is 7:00 am on the day of the corresponding recitation. August 19, 2007 Physics 21 Fall, 2007 Date 10-23 (Tu) 10-24 (W) 10-25 (Th) 10-26 (F) 10-30 (Tu) 10-31 (W) 11-1 (Th) 11-2 (F) 11-6 (Tu) 11-7 (Wed) 11-8 (Th) 11-9 (F) 11-13 (Tu) 11-14 (W) 11-15 (Th) 11-16 (F) 11-20 (Tu) 11-27 (Tu) 11-28 (W) 11-29 (Th) 11-30 (F) 12-4 (Tu) 12-5 (W) 12-6 (Th) 12-7 (F) Class L-16 R-17 L-17 R-18 L-18 R-19 L-19 E-2 R-20 L-20 R-21 L-21 R-22 L-22 R-23 L-23 R-24 L-24 L-25 R-25 L-26 R-26 L-27 R-27 L-28 R-28 E-3 Schedule and Assignments (page 2) Topic Reading Homework AC circuits: transients and steady state 30 46 Quiz 3; discuss HW-17 HW-17 due Steady state AC circuits; phasor diagrams 31 13 discuss HW-18; work exs. 31-4,5 HW-18 due Resonance in ac circuits; transformers 31 46 Answer questions; discuss HW-19 HW-19 due Review session: 7:10 pm, LL270 Morning lecture cancelled. SECOND HOUR EXAM at 4:10 pm on November 1 to be arranged no HW due Start waves (download text from web) Handout, part I Return and discuss exam; discuss HW-21 HW-21 due Superposition of waves Handout, part II discuss HW-22 HW-22 due Light as an E&M wave 32 15 Quiz 4; discuss HW-23 HW-23 due Ray optics: mirrors 33 12; 34 12 discuss HW-23 HW-24 due Ray optics: lenses 34 34 THANKSGIVING BREAK: November 2123 Ray optics: optical instruments 33 4; 34 58 discuss HW-24 and HW-25 HW-25 due Physical optics: interference 33 7; 35 1-5 Quiz 5; discuss HW-26 HW-26 due Physical optics: diffraction, polarization 33 5; 36 15 discuss HW-27 HW-27 due Modern optics: spectroscopy, photons discuss HW-28 HW-28 due FINAL EXAM (scheduled by the Registrar during the period Dec. 1119) Classes are Lectures (L), Recitations (R), or Exams (E). Reading should be completed before the associated class. 22 4 means chapter 22, section 4 of text. The deadline for completing each homework assignment HW-n (using the web-based system) is 7:00 am on the day of the corresponding recitation. August 19, 2007 Physics 21 Fall, 2007 speed of light in vacuo Gravitational constant Avogadro's Number Boltzmann's constant charge on electron free space permittivity free space permeability gravitational acceleration c G NA kB e 0 Equation Sheet 3.00 108 m/s 6.67 10-11 N m2 /kg2 6.02 1023 mol-1 1.38 10-23 J/K 1.60 10-19 C 8.85 10-12 C2 /N m2 4 10-7 T m/A 9.807 m/s2 Planck's constant Planck's constant/(2) electron rest mass proton rest mass neutron rest mass atomic mass unit 1/(4 0 ) h h = h/2 me mp mn u k 6.626 10-34 J s 1.055 10-34 J s 9.11 10-31 kg 1.6726 10-27 kg 1.6749 10-27 kg 1.6605 10-27 kg 8.99 109 N m2 /C2 0 g F2 on 1 = F = qE 1 q1 q2 (r1 - r2 ) 4 0 |r1 - r2 |3 1 dQ (r - r ) 4 0 |r - r |3 Q = CV A A C = 0K = d d Ucap = Uind = 1 CV 2 2 1 LI 2 2 i =Ci (series) or Ri (parallel): 1 Q2 C effective 1 1 = + 1 2 F = qv B, dF = Idl B 0 Idl (r - r ) dB = 4 |r - r |3 0 I 2R center of loop: B = 0 I/2R dQ I= I = -neAvd dt Vs Ns Is Np = , = Vp Np Ip Ns m = -1 0 =B = IA field of long wire: B = solenoid B = 0 nI solenoid L = 0 N 2 A/l dE (at r) = = 1 2 i =Ci (parallel) or Ri (series): effective = 1 + 2 XR = R, XL = L, XC = RC time constant = RC LR time constant = L/R Q(t) for RLC circuit Q0 exp(-Rt/2L) cos t 2 = 1 R2 - LC 4L2 1 C V = IR or V - IR = 0 L R= A f P = IV P = I 2R Vf - Vi = - i E dl Q parallel plate 1 Q dQ 1 E= = V = , dV = capacitor 0A 0 4 0 r 4 0 |r - r | ^ ^ ^ i j k 1 uelec = 1 0 E 2 , umag = B2 A B = Ax Ay Az 2 20 Bx By Bz Work = F dl E = -V V V ^ V E=- ^ i +^ j +k x y z E dA = Q 0 sin(a b) = sin a cos b cos a sin b sin( B dA d 0 dt E dA ) 2 B dA = 0 d E dl = - dt = sin cos = cos 2 cos sin 2 C = 2r C = d A = r2 A = 4r2 V = 4 r3 3 circumference of circle circumference of circle area of circle surface area of sphere volume of sphere cos(a b) = cos a cos b sin a sin b a-b a+b sin a + sin b = 2 cos sin 2 2 ax2 + bx + c = 0 -b b2 - 4ac x= 2a B dl = 0 I + 0 a2 du = ln u + + u2 a2 + u 2 u a a2 + u 2 du u = (a2 + u2 )3/2 a2 a2 + u 2 (a2 u du 1 = - + u2 )3/2 a2 + u 2 1 au e a 0 un du = 1 un+1 n+1 u du = a2 + u 2 du 1 = ln(a + bu) a + bu b du = ln u u 2 2 du 1 = tan-1 a2 + u 2 a u du = a2 + u 2 1 2 eau du = ln a2 + u2 ln u du = u ln u - u cos2 d = 0 sin2 d = v= T / (T =tension) T /300 v = (347.4 m/s) v = f = /k = 2f T = 1/f 2D 1 2D = 2 2 x v t2 1 S= (E B) 0 c 2 S= = B0 0 E0 B0 Erms Brms = = 20 0 2 1 cE0 2 0 1 2 c = 1/ 0 0 EBv xp > h KE = p2 /(2M ) (plane wave) ( = h/2) h p = k h E = = hf h ei = cos + i sin k = 2/ (T =period) = h/p - (de Broglie) P = 1 A2 2 v 2 h 2 2 = i h 2M x2 t August 27, 2007 General Pattern p. General Pattern Read assignment before lecture p. General Pattern Read assignment before lecture Hear the lecture p. General Pattern Read assignment before lecture Hear the lecture See example in recitation p. General Pattern Read assignment before lecture Hear the lecture See example in recitation Do the homework problems on the web p. General Pattern Read assignment before lecture Hear the lecture See example in recitation Do the homework problems on the web Discuss in recitation p. The Pace is Fast The material presented each week is essential for understanding the following week's work. p. The Pace is Fast The material presented each week is essential for understanding the following week's work. Come to class p. The Pace is Fast The material presented each week is essential for understanding the following week's work. Come to class Take notes p. The Pace is Fast The material presented each week is essential for understanding the following week's work. Come to class Take notes Keep up with the homework p. Grading Scheme First Exam (Oct. 4) 100 Second Exam (Nov. 1) 100 Five Quizzes 50 Homework assignments 50 Recitation leader's assessment 50 Final Exam 200 Total 550 p. Electroscope I p. Electroscope II Polarization of charge inside an electroscope. p. ...
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