E&M Circuits


Wednesday, 3-03-10:
  • In Class:
    • Finish Basic Circuits 1 & More Complex Circuits 2
    • Review Labs
    • Do Knight WS Knight31-FundamentalsOfCircuits.pdf Questions #1a, 3-->5, 6a, 6c, 7a, 16a,b,c, 20a,b,c 22
    • Read & Notes for 18.4 (you should now have notes for 17.1 - 17.4, 17.8, 18.1 - 18.4)
  • Homework:
    • Finish Knight Worksheet
    • Finish reading. By Thursday we should have read:
      • 16.6 - 16.9, 17.1-17.4, 18.1 - 18.4.
      • Note that 18.6 - 18.8 are good for those that want to be well rounded.
      Notes:
      • We will have a test on Monday
      • You should have labs and problem sets turned in. Only Knight 31 should be in your notebook
      • Assignments that have been entered into my paper gradebook (happens before online gradebook) are in the "out box" which is parallel to the homework "in box".

Tuesday, 3-02-10:
  • In class:
    • Review Kirchoffs Rules
    • work on More Complex Circuits lab from UM
  • Homework:
    • Do good.

Monday, 3-01-10:
  • In Class:
    • Finish Basic Circuits lab

Friday, 2-26-10:
  • In Class:
    • Sub
    • Begin Basic Circuits lab

Thursday, 2-25-10:
  • In Class:
    • Rvw 1st sheet on worksheet pack
    • do Power section of worksheet packet
    • reviewed #6 on ps 17.1
    • handout Basic Circuits Lab Problem. We will do that lab tomorrow. You should be able to finish the lab completely tomorrow (with a sub).
  • Homework:
    • It is coming... I have to go to lunch room duty then hall duty.
Wednesday, 2-24-10:
  • In Class:
    • finish Ohm's Law Lab & analysis
    • whiteboard solutions
    • slideshow on drift current, ohm's law
  • Homework:
    • do first page front and back on packet.

Tuesday, 2-23-10:
  • In Class:
    • OHMS LAW LAB
    • http://phet.colorado.edu/new/simulations/sims.php?sim=Circuit_Construction_Kit_DC_Only
    • Relate Voltage (Joules/Coulomb) to Amperage (Coulombs/second) and construct a scatter plot chart using excel.
    • Create a circuit with 1 battery (9Joules/Coulomb), n bulbs, and some wires. Use the contact ammeter to measure the flow rate of charges (Coulombs / second, or amps). Add battery, record the new Joules/Coulomb (energy the batteries will give each coulomb of moving charge), record the new charge flow rate (coulombs / sec). Do this for 5 batteries.
    • Plot Joules / Coulomb (y) vs Coulombs / second (x).
    • Plot a best-fit line. Include the eqn for the line, and the correlation coefficient. Should you set the y-intercept = 0? Why / not?
    • What does the slope of the line represent?
    • How can you change the slope of the plot?
  • Homework:
    • Try to finish the last 3 questions for the lab (the last 3 bullet points above).





Monday, 2-22-10
  • In Class:
    • Rvw #37b
    • Do Flow Lab Simulation.
    • Discuss how flow through bulbs compares when resistance is the same.
    • Discuss how flow through bulbs compares when resistance is different.
  • Homework:
    • Do Colorado's Circuit Construction Kit
    • OHMS LAW LAB
    • http://phet.colorado.edu/new/simulations/sims.php?sim=Circuit_Construction_Kit_DC_Only
    • Relate Voltage (Joules/Coulomb) to Amperage (Coulombs/second) and construct a scatter plot chart using excel.
    • Create a circuit with 1 battery (9Joules/Coulomb), n bulbs, and some wires. Use the contact ammeter to measure the flow rate of charges (Coulombs / second, or amps). Add battery, record the new Joules/Coulomb (energy the batteries will give each coulomb of moving charge), record the new charge flow rate (coulombs / sec). Do this for 5 batteries.
    • Plot Joules / Coulomb (y) vs Coulombs / second (x).
    • Plot a best-fit line. Include the eqn for the line, and the correlation coefficient. Should you set the y-intercept = 0? Why / not?
    • What does the slope of the line represent?
    • How can you change the slope of the plot?


FRIDAY 2-19-10
  • In Class
    • Went over problem 37 b
    • Work on lab "Bulbs 1" in class
    • Lulai is working on it during lunch -->
      • I think the book is wrong.
        • They add the capacitances to make an equivalent capacitor as if the two capacitors are in parallel. The way I read the question, the capacitors are in series. So that makes the textbooks C(eq) wrong.
        • I'm gonna check with some colleagues and see what they think.
  • HOMEWORK
    • Read 17.1 & 17.2
    • Take notes on the figures within the text.
    • PS 17.1: 1,3,4,6,7
      • Destiny quotes "hate to break it to you but all the light bulbs in the world are not the same." -plulai


Wednesday 2-17-10:

  • In Class:
    • Rvw Ch 16 #31 b
    • PhET Circuit Constructor Kit
      • Make a circuit with 1 battery, 1 bulb, 1 wire and no fire.
      • use ammeter to measure current through bulb
      • use voltmeter to measure potential difference across bulb
  • Homework:
    • ps 16.5 #33, 37, 43
    • bring camera tomorrow
    • read applying physics 16.2 stud finders on pg 558
    • read 16.9 energy stored in a charged capacitor.

    Charged Bunny Fur. http://www.youtube.com/watch?v=xnb9aopSJB0

Tuesday, 2-16-10:
  • In Class:
    • rvw ch 16 #31 a
  • Homework:
    • finish 31b and bring camera
  • read applying physics 16.2 stud finders on pg 558
  • read 16.9 energy stored in a charged capacitor.

----



Friday, 2-12-10:
, 2-17-10:

  • In Class:
    • asdfdiscuss capacitors
    • rvw hw #24
    • read 16.8 (we kinda discussed 16.9) 16.8 is new
  • Homework:
    • PS 16.4: #29, 30, 31
    • get a disposable camera and take physics pictures.
  • Notes:


























Monday & Tuesday, 1-05-09 --> 1-06-09:
  • In Class:
    • Review packet from break.
    • Begin next unit on charges in motion.
  • Homework:
    • Read 17.1 & 17.2
    • Take Notes.
    • Do PS 17.1:
    • Conceptual Questions #2, 3, 4.
    • Problems #1, 4

Wednesday, 1-07-09:
  • In Class:
  • Homework:
    • Ch 17, Sections 4 and 17.8
      • First: view figures & read captions... take notes on captions
      • Second: Read sections & take notes
      • Do PS 17.2: Prob #10, 11, 31, 33

Thursday, 1-08-09:
  • In Class:
    • Discuss homework.
    • Turn in old homework.
    • RoboHuskie
    • Do Colorado's Circuit Construction Kit
    • http://phet.colorado.edu/new/simulations/sims.php?sim=Circuit_Construction_Kit_DC_Only
    • Relate Voltage (Joules/Coulomb) to Amperage (Coulombs/second) and construct a scatter plot chart using excel.
    • Create a circuit with 1 battery (9Joules/Coulomb), n bulbs, and some wires. Use the contact ammeter to measure the flow rate of charges (Coulombs / second, or amps). Add battery, record the new Joules/Coulomb (energy the batteries will give each coulomb of moving charge), record the new charge flow rate (coulombs / sec). Do this for 5 batteries.
    • Plot Joules / Coulomb (y) vs Coulombs / second (x).
    • Plot a best-fit line. Include the eqn for the line, and the correlation coefficient. Should you set the y-intercept = 0? Why / not?
    • What does the slope of the line represent?
    • How can you change the slope of the plot?
  • Homework:
    • Be prepared to discuss lab findings in class.
      • What is the meaning of the graph's slope, & y-intercept?
      • What would you do to change the graph's slope, y-int?
    • Read & Notes 17.3; 18.1, 18.2, 18.3 (after this, you should have notes for 17.1 - 17.4, 17.8, & 18.1 - 18.3)
    • PS 18.1: Conceptual Questions #2, 4, 6, 7
Friday, 1-09-09:
  • In Class:
    • Finish work on lab from yesterday. Inter-group discussion on plots, eqns etc...
    • Check PS 18.1
    • Discuss series & parallel
  • Homework:
    • Do Knight WS Knight31-FundamentalsOfCircuits.pdf Questions #1a, 3-->5, 6a, 6c, 7a, 16a,b,c, 20a,b,c 22
    • Read & Notes for 18.4 (you should now have notes for 17.1 - 17.4, 17.8, 18.1 - 18.4)
Monday, 1-12-09:
  • In Class:
    • Rvw packet
    • Discuss Kirchhoffs loop & voltage rules
  • Homework:
    • Knight WS: #17, 18,21, 23, 24, 25
    • PS 18.2: Prob#5,6,8a

Tuesday - Friday, 1-13-09:
  • In Class:
    • Do U of MN Circuit Lab Problems 1-3.
  • Homework:
    • Do preliminary work to prepare for next lab problem.
    • Answer Concept Check questions at end of lab packet.
    • Circuits Test Thursday of next week.

Tuesday, 1-20-09:
  • In Class:
  • Homework:
    • Review Concept Check questions from end of lab packet.
    • Try to finish the last PI question from class today.
Wednesday, 1-21-09:
  • In Class:
    • Review UofMN ConceptCheck questions. Some longer than others.
    • Begin discussion of capacitors.APPB 1-21-09.pdf
  • Homework:
    • Read 16.6 - 16.9 (16.10 has interesting content and applications, but not required content).
    • Do PS 16-A: ConceptQuestions #9, 13, 15, 16 : Prob # 22

.this is what happens when a whole lot of voltage goes through a resistor!!!





Here is the Fluid Flow Physlet Simulation:


Thursday, 1/22/09
  • In Class:
    • Discussed capacitors
    • chapter 16, problem 23 (in groups)
    • turned in any homework excluding yesterday's assignment
    • opened a disposable camera to look at capacitors inside (note: do not lick) (brought to you by Danait and Libby)
  • Homework:
    • 16 b PS# 25,29,31

Monday, 1-26-09:
  • In Class:
    • Rvw Homework #31.
    • Begin RC lab. Graphically find Q, EPE
  • Homework:
    • Plan what graphs you will plot to graphically find Q and EPE. This might require just one graph total, or perhaps one graph to find Q and a second graph to find EPE. Remember that when we find values graphically, we are usually looking at areas, slopes, y-intercepts.
    • Do the problem on the pdf at the end of this line. Treat the internal resistance as if it were a resister in series. R&C Prob.pdf
    • I am going to be home with kids on Tuesday. You will have to try to finish the lab (using Logger Pro software on the pc - slope = derivative, and area = Integral or Integrate)
    • Sorry this is late... Had to sub 7th period and get a kid some stitches. The stitches are not related to subbing.

Tuesday, 1-27-09:
  • In Class:
    • Continue working on RC lab. Use Lab Pros to graph and find data, not ExCel.
  • Homework:
    • Finish resistor and capacitor pdf worksheet.

Wednesday, 1-28-09:
  • In Class:
    • discuss capacitors
    • work on lab
    • go over homework problem
  • Homework:
    • worksheet (AP FRQs)


Thursday, 1-29-09:
In Class:
Rvw Questions:Help with review Problems.pdf

Friday, 1/29/09:
  • In Class:
    • test! (very, very fun)
  • Homework:
    • take-home test


Monday, 2/02/09:
  • In Class:
Look at Test
  • Homework:
    • Read 19.1 - 19.4
    • Noteson Figures
    • What is Right Hand Rule #1
    • What must be true for B & I in order for their to be a force F?
    • Do Problem Set PS 19.1:
      • PS19.1: Prob 2,3





Assignments from 2008:
Thursday, 1/17/08:
  • In Class:
    • Briefly discuss homework.
    • Talk about Proto-Robohuskie 1.0
    • Do Colorado's Circuit Construction Kit
    • http://phet.colorado.edu/new/simulations/sims.php?sim=Circuit_Construction_Kit_DC_Only
    • Relate Voltage (Joules/Coulomb) to Amperage (Coulombs/second) and construct a scatter plot chart using excel.
    • Create a circuit with 1 battery (9Joules/Coulomb), 1 bulb, and some wires. Use the contact ammeter to measure the flow rate of charges (Coulombs / second, or amps). Add batteries, record the new Joules/Coulomb (energy the batteries will give each coulomb of moving charge), record the new charge flow rate. Do this for 5 batteries.
    • Plot Joules / Coulomb (y) vs Coulombs / second (x).
    • Plot a best-fit line. Include the eqn for the line, and the correlation coefficient.
    • What does the slope of the line represent?
    • What should the y-intercept b?
    • How can you change the slope of the plot?
  • Homework:
  • Be prepared to discuss lab findings in class.
      • What is the meaning of the graph's slope, & y-intercept?
      • What would you do to change the graph's slope, y-int?
    • There may be more homework... I just don't know about it.
    • Read first four sections of chapter 17.
    • Create a guided reading question for each section of chapter 17 (Remember, How's and Why's ?s, not What's)
    • Summarize the diagrams/illustrations in a sentence or description. Address the significance of why it's included in the text.
Today's homework is brought to you by: Jon Slye, Amy Morton, Kyle Rosenberg, the Corporation of Public Broadcasting, and viewers like Andrew Reiner. Thank you.

Friday, January 18, 2008
  • In Class:
  • Homework:
    • Do all of the prep work for lab problems 1 & 2. Read the prescribed sections (17.1 --> 17.4, and the sections within ch 18 on series and parallel circuits). Practice on the phet website posted yesterday.
    • Our goal is to complete Lab Problems 1 & 2 in class on Tuesday.
Tuesday, 1-22-08:
  • In Class:
  • Homework:
    • P.S. 17.1: Probs 3, 4, 10, 11, 31, 33
Wednesday, 1-23-08
  • In Class:
  • Homework:
    • Do: Fundamentals of Circuits packet by Randall Knight:
      • #20a,b; 21 a, b; 22; 23; 24; 26; 29 a, b
    • Read 17.3 & 17.5
Thursday, 1-24-08:
  • In Class:
    • Discuss Loop Rule & Junction Rule
    • Rvw Equivalent Resistance
    • Discuss DMM's to measure current, then voltage.
  • Homework:
    • PS17.2:
      • Ch 17 Probs: # 50a, 52, 53b
      • Ch 18 Probs: #5
Friday, 1-25-08:
  • In Class:
    • Review Loop Rule & Junction Rule
    • Review H.W. (many missed the assignment).
  • Homework: .
    • Prepare for lab problem #5 (both qualitative brightness, and quantitative measurements of current & voltage).
    • Finish P.S. 17.2 from Thursday.
    • Note: The quantitative measurements of Current & Voltage through the use of a Digital Multi-Meter is discussed in your book. We did discuss it in class as well. It might be helpful to practice this lab by using the PhET Circuit Simulation (link earlier in this page).
Tuesday, 1-29-08:
  • In Class:
    • Do U of MN Lab Problem # 5
  • Homework:
    • Be ready to complete the lab Wednesday.
    • Work on PS 17.2 from last Thursday

Wednesday, 1-30-08:
  • In Class:
    • Finish Lab Problem #5
  • Homework
    • I don't have my book with me... THere is a section or two in chapter 18 that adresses equivalent resistance. They start with resistors in series & parallel. Then they move to 'complicated circuits' (or some wording close to that). Seriously and sowly plow through that reading. Take notes on the text and the figures (i'll check them...promise).
    • When you work these larger circuit problems (and smaller ones for that matter). It comes in handy to create a table for each element in a circuit that gets the same amount of current. A table like:
Item In Circuit
Resistance (ohms)
Current (amps)
Poential Difference (V)
Power (Watts)
Bulb a




Resistor




Bulb b




    • It is pretty common to get a question that asks "what is the current through, or voltage across, or resistance of xyz' maybe which bulb is brighter? THen you HAVE to use Power (NOT current like our earlier lab).
    • If you are not done with p.s. 17.2, get 'er done. We'll review in class on Thursday. Friday will be capacitors.
Thursday, January 31, 2008
  • Homework
    • P.S. 18.1: # 6, 17, 37, 39
Friday, 2-01-08:
  • In Class:
    • Rvw homework
  • Homework:
    • Do Mooney review packet. Skip Capacitor questions.
Monday, 2-04-08:
  • In Class:
    • Rvw Mooney Packet
    • Whiteboard Mooney Prob #3
  • Homework:
    • Read & notes for 16.6, 16.7, 16.9
  • Note: Test on Thursday.

Tuesday, 2-05-08:
Wednesday, 2-06-07:
  • In Class:
  • Homework:
    • Problem Set 18.2:
      • Ch 18 Prob # 48, 50
      • Ch 17 Prob #54, 59
  • Note: Quiz on Friday. 1 Free Response question, several multiple choice questions.
Thursday, 2-07-08:
  • In Class:
    • Review for final
  • Homework:
    • Study for test

Friday, 2-08-08:
  • In Class:
    • MC Test, FR Test
  • Homework:
    • Do FR Takehome test.
  • Note: Extra Credit: Bring in a floaty noodle and get extra credit. The RoboHuskie team needs them. The first 10 Noodles get Extra Credit.