2005 fall Syllabus
and Course
Expectations
the official time
test advice test corrections policy
Walker physics website
AP
Physics and FAQ/practice AP
problems
North
Carolina Physics Curriculum
How Stuff Works! and How Things Work
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October 31 |
November 1 |
November 2 |
November 3 |
November 4 |
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make the predictions (curren through and voltage drop across each resistor) asked for in lab D6: a) for the series circuit if you didnt finish it in class (this is the non-measurement part of A5 of the lab) b) for the parallel circuit (this is the non-measurement part of B3)... assume the same battery voltage as you used for the series prediction |
part C of lab D6 plus any other non-measurement parts of lab D6 |
bring to
class: 1) D6 completely finished including all measurements done with your partner 2) at least one of the four D7 circuits completely predicted (that includes written loop rules, junction rules, ohm's laws, and numerical calculations for the voltage difference across and current through each of the 3 resistors and the battery) today is the last day that we spend on D7 in class the last day for the 4 D7 checks is Friday |
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(always done before class) |
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& the following pictures and captions: Fig 22 (19,20,25,27) be ready to answer: what produces a magnetic field? what are the magnetic "charges"? how many are there? what are the attraction/repulsion rules? how do magnetic fields lines look? |
know how to find the force on a moving charged particle with the right-hand rule also page 722-723 on circular motion in magnetic fields |
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presentation |
21(17) |
21(23) |
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homework (by 5 pm) |
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(see last Friday's lab box for instructions) lab D7 starts |
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bring your green lab book good time to get D7 checks is at tutorial tonight |
(one check for each lab) |
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October 24 |
October 25 |
October 26 |
October 27 |
October 28 |
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(covers in particular ohm's law lab D4, but also D2 & D3, associated reading in Walker, TWTW, and GREEN handout on resistivity/resistance) bring 1) BOTH OF your lab books 2) your GOLD Multimeter Instructions Handout 3) your GREEN handout on resistivity/resistance |
test
on chapters 19 & 20(1,2,5) and associated labs (D1 through D3): electric charges, fields, forces, and energy (may include a lab component of course) |
(you will be handing in the BLUE book -- with the completed light-bulb practical -- on Monday)Tuesday) review the 2-light-bulbs-in-parallel that we did on monday; make sure you have a complete 3-column table (globe/sphere bulb, tube bulb, DVD) & 5 rows (power, voltage diff across, resistance of, current through, loop rule that applies) read over first few parts of lab D6 which we start today |
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(always done before class) |
& Walker 24(1) [should something look familiar here?] |
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(Walker p. 693) 21(4 up through p. 691) |
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presentation |
20(70) |
21(16ab) |
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homework (by 5 pm) |
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[do you need to write the loop rule? Ohm's law?] |
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(max = 54) |
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how to finish the lab practical (on the resistance of light bulbs): 1) pick up a copy of GRAY instruction sheet (from either me or Ms. Bondell) 2) finish the lab in your BLUE lab book somewhere on the physics floor under "test" conditions (i.e., you can use only what it says on the top of the GRAY sheet) 3) draw a red line (pens available in the black box) under the last thing you completed tuesday (so we know to look only after the red line for additions) if you add something to the data table, circle that in red also, so we notice it 4) questions 7 and 8 require explanations, not just answers 5) return the GRAY card to the person who loaned it to you 6) turn lab book in to black box by Tuesday |
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answers to even chapter 20 and chapter 21 problem are posted on the bulletin boards |
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October 17 |
October 18 |
October 19 |
October 20 |
October 21 |
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introduction to multimeters and resistance, current, and voltage difference measurements |
lab D4
starts; see lab box below |
(computers with printer access will NOT be available) lab D4 continues; see lab box below |
QUIZLET TODAY ON OHM'S LAW (SEE EMAIL) see lab box below coming attractions: tuesday: lab quiz practical [covers circuit building, measuring, labs D3-D4, 21(1-3) plus monday's handout] wednesday: test on electric forces, fields, and energy [covers chapters 19-20] |
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(always done before class) |
21(1) & TWTW on batteries |
OR TWTW (NEW ed.): 259, 266-269 & 20(5) again, if you still dont know what's in between the parallel plates of a capacitor |
& last half of Walker, p. 681 (on Ohm's law) |
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know what determines the resistance of a resistor AND the section entitled "loop rule" in section 21(5) |
| in-class
presentation |
20(9ac) |
20(70) POSTPONED TILL MONDAY |
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homework (by 5 pm) |
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1) in the 7-step chain from voltage difference to light, put in the formulas (where you know them) for the connecting steps [e.g., for the first step, how do you find the E field from the voltage difference] 2) on your 3 diagrams, here is an NON-exhaustive list of what you should have written or shown in each of the 3 diagrams: a) which way the electrons are flowing in various parts of the circuit b) where in the circuit electrons are never flowing (and why) c) where voltage differences exist in the circuit; are the voltage differences increasing or decreasing? d) the size of the friction force compared to the electric force (with the forces shown in the correct directions) [this one is tricky, but really important] |
bring to class in your GREEN notebook: a) "method description" for either Part 2 or Part 3 of lab D4 b) predictions for the 3 voltage differences at the end of part D of the multimeter handout |
bring to class in your GREEN notebook: a) appropriate graph & matching table (for yesterday's D4 part 2 or 3 data) to class for checks & points IF you didnt get it checked in class yesterday the MATCHING TABLE has 5 colums (math var, physics var, values of m/b from the fit; values of m/b expected, & diff where appropriate) b) "method description" for either Part 2 or Part 3 of lab D4 (the one you didnt do in class yesterday) |
if you didn't finish the last part of lab D4 in class yesterday, bring appropriate graph & matching table (using yesterday's D4 data) to class for check add up your points in lab D4 (if you didnt finish a part in class that was expected, but you brought it the next day, you get 85% of the credit for that part); the maximum possible is 54 (including 3 points for your conclusion) |
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October 10 |
October 11 |
October 12 |
October 13 |
October 14 |
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of energy problem (using q E h) involving oscilloscope's vertical plates (find the final speed of the electron, given the vertical displacement); lit up a fluorescent light held near the van de graf; did another problem involving 2 principles: Wnc = DE and W = DK [problem 20(59a)] |
we spend the entire class period on lab D3 |
no
classes |
only teachers have to be at school |
only teachers have to be at school |
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(always done before class) |
voltage and the human body also, lightning: lightning physics lightning lightning safety |
don't worry about thge formulas or calculations; know what a capacitor is made of, what it is supposed to do, what can be put inside of it, why you would want to put something inside of it, and how a capacitor's capacitance can be increased |
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presentation |
20 (20 part a) |
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homework (by 5 pm) |
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[see model solution to 20(59a) on my bulletin board... it requires 2 physics principles!] |
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today after school from 4:00 - 4:30 ONLY (must be present with your partner) |
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good practice problems on energy
and voltage: 20(9,11,16,18,19,59) |
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October 3 |
October 4 |
October 5 |
October 6 |
October 7 |
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half-period
lab practicum
in class (you can use D1 lab book) bring BOTH lab books to class! 35 minutes spent starting lab D |
first conservation problem involving electric energy qV (finding the speed at which the electron reaches the anode, given the voltage difference) |
if a 6.0-volt battery is connected to the oscilloscope's vertical plates, find the vertical displacement of the electron, using d-v-a-t and force procedures: found that there must be a voltage multiplier inside the oscilloscope |
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(always done before class) |
also, 19(5) know the rules of electric fields |
(first page only) |
(for lab D2 today) also TWTW (pp. 262-263 1st edition or pp. 246-247 2nd edition) |
what is electric energy? (look for parallels to gravitational energy) |
yesterday we found that the formula for electric energy is qV (that formula is always true) in section 20(2), Walker uses another formula for electric energy (which isnt always true, but is true in the examples he does in that section) what is this new, different formula for electric energy (it did also appear in section 1)? |
| in-class
presentation |
19(50a) |
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none |
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homework (by 5 pm) |
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you may need to come in and use the software in the 2nd physics lab (EM Field is also available via the T drive: drag the entire folder to you local C drive, then do the install) |
& electric field vector sum problem |
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may help in understanding parts C and F on the lab have you finished lab D1? (monday is the deadline; we start putting equipment away Tuesday); lab quiz on wednesday it does not appear that parts F2 and F3 of the lab are working properly (due to continuing humidity problems); however, part F1 should work, and you should be able to draw a nice diagram in your book to explain what happens |
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checks given ONLY: 4:15 - 4:45 today 3 - 5 pm SUNDAY 4 - 4:30 pm MONDAY you must be present with your lab partner at the checks |
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(we will try to find answers to odd problems and post the answers, not the solutions); these are basic electric force diagram problems: 19 (7,9,10,11, 12,13,14,18,21,22) |
last day for test corrections (1 day later than usual, because I was out of town friday) |
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5:45 pm |
answers to even problems in Chapter
19 are now posted on the bulletin board in the physics hallway good practice problems on electric fields: 19(32,33,34,64,66,67) |