PHYSICS 204
Lecture:
Spring 2018
John Jay College of Criminal Justice,The City University of New York
Prof. Guizhen LU
LAST
UPDATED 5:25 pm, february 2, 2018
DATE 
LECTURE 
Pre READING 
ASSIGNMENT 
CLAIM 

Monday,

Thingy & Unthingy Things: Particles & Information * * * Shaking & Meddling: 
, Physics 203, or some roughly equivalent calculusbased study inClassical Mechanics, recalling and reviewing particularly: 1) Galileo's Principle of Relativity, 2) Newton's 2nd Law of Motion, 3) The Theorem of Energy Conservation. Feel comfortable with the meaning and application Universal Gravitation (Newton) & Elasticity (Hooke) * * * HRW: Chapter 15 
Welcome (Back):
* * * 1. Oscillation: 2. Interaction: 
F =  kx 

Wednesday 2018

Space as Clocks * * * Bridge Topics (the paths from 'Thingy' things to the ways to proceed in understanding and/or practical reality from the standard motion of discrete particles to the propagation of immaterial pulses) > A Differential Equation. 
HRW: Chapter 13 NOTE: These two chapters seem OUT of ORDER. This is intentional. After Next Tuesday's Lecture, you will have a greater sense for which sections of the above chapters are being emphasized and which are not: GO BACK and REALLY READ the sections it seems that we are emphasizing. REALLY READ means (among other things): Pick at least two Sample (Solved) Problems and try to solve them without looking. 
1. Oscillation: 2. Interaction: 

MONDAY, FEBRUARY 5, 2018 
The two topics are: 1) Simple Harmonic Oscillation and 2) Universal Gravitation For the moment, regard these as two separate and independent topicstwo pieces we need to begin this course. We will soon bring them together. 
Some Solutions: 
Practice: Simple Harmonic Oscillation The following "Problems" (not "Questions") at the end of Chapter 15. a) Problem 9. b) Problem 29. c) Problem 31. * * * Universal Gravitation Problems at end of Chapter 13: Problems 3, 19, 24, 31 KETCHUP! 

WEDNESDAY, FEBRUARY 7 
A Closer Look at This Differential Equation (the Dif. Eq. for S.H.O.):
 Any variable which depends on time in a manner that can be described by the mathematically generalized form (Dif. Eq.) of Hooke's Law will necessarily oscillate in value with an
* * * One Place the Inside a Solid Sphere: The Gravitational Tunnel: Diameter 
Bridge Topic > #2. 'ActionAtADistance': UNIVERSAL GRAVITATION. Any and every infinitely small point of mass exerts an infinitely farreaching influence throughout the universe  pulling toward itself every other point mass, without need for nor interference from any other matter that might be found to intervene. *** Chapter 16 
Universal Gravitation:
2. Problems at end of Chapter 13: Problems 3, 19, 24, 31


MONDAY FEBRUARY 12

to the above (most recent) Practice Exam, SU16. More solutions forthcoming... 
SUBMIT, NOTE . . . 2) You might not have attempted anything resembling a 'twocolumn' proof for a long, long time  if ever. Understood. The term itself might strike you as unfamiliar or intidimating. With moral support implied by the sheet entitled "Knowing What To Do When You Don't Know What To", one step at a time. Hint: The smaller each step, the better. 
(That we need. To know. Without drama.)


WEDNESDAY, FEB. 14 
A 2Dimennsional Arrangment of * * * * * * The Wave Equation: Derivation 
A SOLVED Practice MidTERM (which is extremely similar, but not identical to, your MIDTERM 1 
Note how the tail end of the assignment refers to a 'DERIVATION' (PROOF) in the text regarding WAVE MOTION. This is serious and real. You ARE responsible for this challenging proof. Look up other versions wherever you want, but you MUST have a clear notion of where you DO and where you DO NOT understand the proof. Then we can help. 

MONDAY, FEB. 19 
Chapter 21 


TUESDAY FEB. 20 (follows Monday Schedule) 
A Yellow & Pink Companion 
Chapter 21, 22, 23 


WEDNESDAY FEB. 21 
Deriving the Wave Equation: Finding a Constant 

PRACTICE! 
(with solutions!) FOR MIDTERM 1:  
MONDAY, FEB. 26 
Propagation 
ReRead Chapter 22 

An unsolved  
WEDNESDAY, FEB. 28 
Relation to Gravity Relation to Waves 

Do the sheet called PRACTICE Do the sheet called OSCILLATIONS & WAVES 



(which is MIDTERM 1 
(which is MIDTERM 1 
Some to the PRACTICE EXAMS for MIDTERM 1

Contemplate, Decipher, Scrutinize LEARN to DERIVE the WAVE EQUATION. Start with this PICTURE 

MIDTERM #1: OSCILLATIONS & INTERACTIONS

(Experimentally) (i.e.: Labs #3 & #4) * This is NOT the 'Derivation'; it is NOT an 'analytical proof'. The derivation (previous row of this web page) 

Closed Paths, Field Lines * * * Potential, 
(ELECTROSTATIC) FIELDS! * * * FIELDS: Letter to Bentley 
Prepare Part I of And thereby Study for MidTerm #2
(OR . . .)
Study for MidTerm #2 And thereby Prepare Part I of
(Further Details Forthcoming.)


FLUX:

* PRACTICE MIDTERM 2: for the MIDTERM2 exam




DOPPLER EFFECT 




Chapters 28, 32. 
HW #9 

, 
ELECTROSTATICS 
 
THURS., NOV. 2 
EForce  
TUES., NOV. 7

&
An overly thorough and underly graphic booklet

Chapter 26, 27 1) PREP PACKET for FINAL EXAM. from SPRING 2015 * * * 2. SOME SOLUTIONS to the above PREP PACKET, from Final Exam, 2015 
HW #11. Steady Circuits: Ohm's Law (formerly known as 'MeasuringAlongThePathFromPole2Pole') 

THURS., NOV. 9

Final Exam 

TUES., NOV. 14 
GAUSS'S LAW: DERIVED  
THURS., NOV. 16 
GAUSS'S LAW: APPLIED 


TUES., NOV. 21: NO CLASS (FRIDAY SCHED.)

KETCHUP! 
KETCHUP! 

THURS., NOV. 23: NO CLASS. THANKSGIVING. 
KETCHUP! 
(with Solutions!) 
KETCHUP! 

TUES., NOV. 28 

(Take Home) Distributed 


THURS. NOV. 30 
(Take Home) 


TUES., DEC. 5 
FARADAY'S LAW 


THURS., DEC. 7 
Maxwell's Displacement Current & The 2nd Postulate 

RADIATION & GPR 1905 

TUES., DEC. 12: LAST CLASSES 
REVIEW 
Final EXAM (Summer 2015) 
SOLUTIONS (to Final EXAM, Summer 2015) 

THURSDAY, DECEMBER 14, 10:30 AM  12:30 PM 
P204 FINAL EXAM, FALL 2017! 

EXAM PREP: PRACTICE MATERIAL & ARCHIVED EXAMS! > 
'Quintessence' i.e.: Second MidTerms 


2014 Quintessence (MIDTERM 2) & SOLUTIONS 

Wed., May 10 

Mon., May 15 
'Quest' i.e.: Second MidTerms 
P204 Quest (Midterm 1) from P204, Summer, 2011 

Wed., May 17 

May 22  May 26  FINAL EXAMS  
FINAL EXAM i.e.: Final Exams 
Solved P204 Final Exam: Spring, 2014 


p204 PRACTICE FINAL EXAM: 

Assorted that you may or may not have seen... 
Circuits  
Ampere's Law  Magnetic Field and Flux  
* * *  
What follows is purely supplemental; NOT RECOMMENDED for exam preparation purposes. 

Supplemental Materiall 
Electric Potential 
Chapter 34  

Magnetostatics: BioSavart Law, Gauss's ('Nobeflux') Law 
Chapter 35 



Ampere's Law *** 
Chapter 37 


Note: All assignments are 1) highlighted, 2) DUE the day on which they appear and 3) hyperlinked as we progress through the year.