2005 - 2006 Syllabus
and Important
Stuff the official time
test advice and 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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February 20 |
February 21 |
February 22 |
February 23 |
February 24 |
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do example 8-7 in class |
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(9:30 am - 11 am) tutorial times see below bulletin board deadline today @ 4 pm |
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(always done before class) |
know the 2 ways to tell a conservative force from a non-conservative force which force(s) did they show were conservative; which, non-conservative? |
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we're done |
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presentation |
7(3) (the pumpkin) |
8(53), the skateboarder |
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homework (by 5 pm) |
(the hockey puck & the baseball slider) |
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(the skateboarder again, & the pendulum) |
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9:30 - 11 am (i forgot there was an exam in the afternoon) bulletin board needs problems on chapters 7, 8, and 9 by tomorrow (Thursday) at 4 pm |
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NASA
to sacrifice $2 billion in science to fund STS & ISS... all ISS (space station) science research deferred to next decade |
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February 13 |
February 14 |
February 15 |
February 16 |
February 17 |
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test for blocks C and D special schedule |
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(always done before class) |
then browse the first part of 9(4) -- pages 240 - 242 -- lightly (it contains the same procedure we went over in class on friday, although not as logically arranged as I did it, of course) finally, active example 9-2 on pp. 244-245 model solution for momentum problems (since block F did not quite finish in their block) |
the example of the hail and rain is particularly important also, it would be nice to read the center-of-mass section 9(7) also thursday we start chapter 7 |
7(1) know definition of work |
7(1) know definition of work |
know 1) the meaning of and the formula for kinetic energy 2) the new principle (the work-energy theorem) last day on chapter 7 we start chapter 8 on monday |
| in-class
presentation |
9(23),
EXCEPT to make it much easier, assume that the hockey players are
moving in exactly opposite directions as they approach each other (so the problem is one-dimensional) remember to follow friday's procedure on this problem |
block F: 9(54 A only) |
blocks C and D: 9(54 A only) |
9(55) |
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homework (by 5 pm) |
in addition to what is asked, find the car's speed such that the tires do NOT leave the road in traveling over the hill problem 2: clothes are being dried in a circular clothes dryer which spins the clothes in a vertical circle or radius 0.70 meters.... find the rotation frequency (in rotations per second) such that the clothes are NOT in contact with the dryer wall when the angle that the dryer wall makes with the horizontal is 75 degrees (hint hint.... both of the problems above require inequalities) |
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February 6 |
February 7 |
February 8 |
February 9 |
February 10 |
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bring to class the numerical value of the ratio we were calculating when class ended yesterday morning |
please make
sure you have a calculator today and every day in the future we do lab today block D: finish the calculations in problem 12(27) |
we do lab today; there IS a prelab; see lab below |
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(always done before class) |
as you read about the gravity law, make a list of the important features: for example: how does it depend on the separation of the objects? what is the range? what property of the objects involved does the strength depend on? what does the direction depend on? |
things you should know: 1) where most satellites orbit & what the value of g it is there 2) how to obtain Kepler's 3rd law from newton's gravity law, newton's 2nd law, the circular acceleration formula, and the formula for the speed in circular motion 3) what geosynchronous satellites are and what value they have |
example 12-1 [this is the last of the "official" gravity reading... but you ought to know another of gravity's big effects: tides are discussed in section 12(6)] |
1) review the force diagram and net force equations for the satellite calculation on page 357 2) example 12-1 [this is the last of the "official" gravity reading... but you ought to know another of gravity's big effects: tides are discussed in section 12(6)] |
+ section 9(5) up to (not including example 9-5) ignore any part involving kinetic energy (KE) |
| in-class
presentation |
6(78) |
F
block ONLY: calculate the ratio of the gravity force between the earth and moon to the gravity force between sun and moon (to get numerical values for various things, look on the back cover of your book) (before you actually go calculate this, you might predict whether the ratio will be greater or less than 1) |
12(16)
for C and D ONLY |
F
block ONLY: 12(16) |
12(55b) |
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homework (by 5 pm) |
and 6 (75) |
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make sure you follow the usual force diagram procedures on problem 12(6) |
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newton's 2nd lab (A6) lab books and poster presentations have been graded; your group should have grade sheet; individual scores (out of 10) should be marked in your RED books (not yet available, as we are still grading the elevator labs) |
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you should now have both lab books in your possession with the grades for A6 (out of 10) A8c (out of 30) in the RED book and grades for A7A (out of 25) A7D (out of 18) |
1) enter the data tables in your lab book; it covers 2 facing pages 2) read the lab so that you know what you will be doing, and come up with some "m and v combinations" as the lab instructions require |
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January 30 |
January 31 |
February 1 |
February 2 |
February 3 |
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bring 3 examples of circular motion in your notes to class (e.g., a piece of gum stuck to the rim of a rotating bicycle wheel) |
can you think
of example of circular motion where the force toward the center of the
circle is kinetic friction? we might do lab, so wear appropriate stuff |
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(always done before class) |
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know the magnitude and direction of acceleration when traveling in a circle also, finish up reading in chapters 5,6: section 5(7); examples 6-2,3 |
example 6-9 is the important example also, we still have to talk about the magnitude of circular motion acceleration (and the derivation the book did to get it) |
(page 162) |
(p. 159-160) + the two paragraphs after the example |
| in-class
presentation |
no
presentation |
6(73) |
6(44) |
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homework (by 5 pm) |
6(27) by 9 pm today |
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6(24) |
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newton's law lab |
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friction labs (A7, parts A and D) completed and handed in walk-around quiz shown to me, if you didnt finish in class on monday; that problem [6(35)] was a good test of your status as a problem solver of inclined plane or force triangle problems; you want to be able to do a problem of this type in 15 minutes or less |
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special
tutorial help for people struggling with inclined planes and breaking
up forces |
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