welcome to Physics 354 !

2010 - 2011 Syllabus   and  Course Expectations      the official time

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North Carolina Physics Curriculum

How Stuff Works! and How Things Work
 

 
Sunday,
May 29
Monday,
May 30
Tuesday,
May 31
Wednesday, 
class

C3/C4 lab books
AFTER 6 pm tonight ; they are in the black box OUTSIDE the double doors leading to the physics hallway

some people turned in the wrong lab book or no lab book:

make sure you come by during amnesty hours tomorrow!

have you done your course evaluation?
please do!


not
Memorial Day
at NCSSM

C6 book can be picked up AFTER 10 am this morning

if you dont have a grade (because you didnt bring it in last friday), bring it to amnesty hours today!!!)

warning: some (6, to be exact) people picked THIS book (the C6 one) up LAST NIGHT
(contrary to instructions!!);
they lost about 20% of the credit, because we were not done grading until 10 am this morning  (bring to AMNESTY)

physics exam

do you know where YOURS in?
 one more survey to fill out, please?






AMNESTY HOURS



LAB AMNESTY hours:

11:30 am  -  1  pm
on Bryan 4th floor

bring IN PERSON
any labs (in your lab books) that were not graded because you didnt have them in the box at the right time

graded labs:

D4 (ohm's law: graphs and matching tables)

D5 (re-do of lab practical)

D6 was also graded, but not in the lab book

check to make sure you have grades for the following in the appropriate books:

C2 (spring SHM: grade out of 50 points AND 8 checks; score doubled to make a grde out of 100)

C3 (wave pulses: grade out of 50)

C4(standing waves: grade out of 50)

C6 (sound&music: grade out of 16; grade will be multiplied by 6 and 4 added to make a score out of 100)




lab


the book with lab C6 (Sound&Music) can be picked up Sunday afternoon
 
 
 

physics tutorial


Sunday 6 - 8 pm
Bennett


Monday 9 - 11 am
Kolena

Monday 1 - 5 pm
Green

Monday 5 - 7 pm
Stefan

 

Tuesday 9 - 11 am
Milbourne

 
 

 
Monday,
May 23
Tuesday,
May 24
Wednesday,
May 25
Thursday,
May 26
Friday,
May 27
class
 
bring musical instruments to class !!

and lab books
since we are doing lab
 
 
final exams begin 

what we'll do
in class


part 8 of  the Sound & Music lab C6





reading
(always done
before class)
 
 
14(7)
28(1)

on interference in space
28(1,2)
on interference of light
 
in-class
presentation





written
homework
(by 5 pm)

 

 
 
lab
 
 
 
C6 book turned in
 
other
 

 
 all assignments, labs, etc
must be in by midnight,
per NCSSM rule

 
 
Monday,
May 16
Tuesday,
May 17
Wednesday,
May 18
Thursday,
May 19
Friday,
May 20
class

 shortened classes

special schedule
 you should have finished through part 3B today

if you didnt finish part 3B in class, do it tonight for homework so that we can check it first thing in class tomorrow....

do it WITHOUT first using your calculator but instead using the rules and analysis we learned in class last week
you should have finished through part 5 today 
finished through at least 2 of the 3 speeds of sound in part 6 today 
 
all of
lab C6  should be finished

checks will ONLY be done during class/lab time (NOT outside of class) so make sure you have everything in line to earn all checks by the end of class today

students leave this weekend to visit their church organ

coming attractions:
tuesday of next week will be bring-an-instrument to class day
(if your instrument is at home or you want to take it home this weekend so that you dont have to hire a truck on graduation day, thatis fine, but it would be nice to have some real instruments in class next tuesday)
what we'll do
in class
all week:              lab C6: sound and music
in lab that will be returned monday
make sure that you have calculator every day
reading
(always done
before class)
14(8):
pp. 459 - 463
the parts on standing waves in air columns;
closed and open tubes

 
14(5) on sound intensity and amplitude

also make sure that you have read
and
understand
14(4, 8, especially on standing waves in air columns)
BECAUSE the answers to many lab parts on in these sections

for example, how does the loudness of a sound depend on the amplitude of the sound wave?
so, If you double the amplitude, how loud will the sound get?

 
 
in-class
presentation

14(59)





written
homework
(by 5 pm)
14(64)
 
14(93)
 
14(71)

as part of  your solution to the problem, make sure that you include a large (at least 1/2 page) picture of the beat-frequency pattern over a time span of one second
(some of you apparently didnt think that was necessary on wednesday's problem!!??!!)
lab
 
 
 
 
 
turn in labs C3/C4

hopefully they are already done

make sure all partners'  names are in ToC!

other
 

 
 

 

 
Monday,
 
May 9
Tuesday,
May 10
Wednesday,
May 11
Thursday,
 
May 12
Friday,
May 13
class
bring computer to class today if possible
(but not required);
one per table would be nice
bring an example (i.e., something tangible to demonstrate, NOT just a description) or resonance to class 
   
we do lab C4

bring gloves
what we'll do
in class

 share resonance demonstrations




reading
(always done
before class)
  13(8) resonance

and 14(8)
14(3)
 
14(9)
and precal book
pp. 424-425
 14(4)
on the basic properties of sound

things you should know the answers for after doing the reading


be able to clearly state the conditions for resonance





 


how to add2 sine waves and what it means




 things for

in-class
presentation
finish any unfinished calculations from lab C3:
done the matching table for part b?
calculated the fit to your v(T) data from part b?
found the % difference from the v determined in part c (from v = λ f) with that from part b (using your fit)


bring results of superposition of waves applet   (exercise set  #1) on paper (to hand in)  to class with you
(if you don't have it I will have to ask yo to leave class to go do it)
bring results of superposition of waves applet   (exercise set  #2)

14(12)

prelab to
lab C4
(in the same book as lab C3)
written
homework
(by 5 pm)

 

13(69)
[would the answer  be the same for a n oscillating spring?]
 

 
 14(9,11)
 
lab
 
 
 
 
lab C3 should be finished 

other

the Tacoma Narrows bridge oscillation

 
 the software I used today in class..... you can test your range of hearing with it, among other things

 
 
Monday,
May 2
Tuesday,
May 3
Wednesday,
May 4
Thursday,
May 5
Friday,
May 6
class

I will be in on sunday (i.e., yesterday)
from 3 - 5 pm if you and your partner want to work on the part III of the spring lab
(bring your calculator -- and a flash drive just in case you can't print....
to print to the ncssm printer in lab 2, you will need:
a) printing privileges
b) to attach the printer; the printer path
[\\nitrogen\colorado] is written on the white board in lab 1 (and lab 2)]

you can also pick up the now-graded circuits test (from before break)
 
 
 
 
  lab C3 on traveling waves.... you will also probably required to sit on the floor....dress appropriately...
also bring gloves (to avoid bleeding)
what we'll do
in class
13(26)




lab on traveling waves in springs

reading
(always done
before class)
13(2) and 13(3 up through bottom of p. 402) 
 13(5)

study the energy examples
 13(rest of 3 and all of 4)
 13(6)

as you read, you need to notice if the same "features" of SHM (that we saw for the case of springs: rmember that there are 3 of them) are also present for the case of pendulums
 14(1,2, and first 1.5 pages of 7)

in-class
presentation

13(35)



13(39)


written
homework
(by 5 pm)
challenge 8
(from last week's challenges)

challenge 8 (DOS version) works fine on the computers on the physics hall; I strongly suggest using this software to do challenge 8;

the applet version does not appear to be working correctly
...
challenge 8 will be due tuesday at 5pm;
the spring problems will be due monday at 7 pm

13(14)

13(35) is straightforward, but for 13(14), you will have to start with the basic equation of simple harmonic motion, which in this class will be

  position = A sin (Bt + C) + D

(hopefully you have some familiarity with this equation from precal or cal)

in problem 14, you will need to take the  given stuff and solve (and match) for A, B, C, and D

 challenge 8 due by 7 pm
(use the physics hall computers.... click on the link that has an MS-DOS icon and says
"shortcut to cpx.exe"

13(42,43)

[Part III of the spring lab -- done in lab books -- will be due friday]

general advice for problem-solving on springs:

under NO circumstances may you ever use equations 13-2,4,6,7,8,9 !!

people who know calculus can get to these from the general equation for delta-x, but they must always start with that equation for delta-x

 
Part III of spring lab (in lab books) 
lab
if I am not here and you need your spring, ask one of the teachers to get it (it will be in my office under the light switch)

make sure you return it when done!
lab D8
(bar magnet lab)
due by 7:30 pm
 
 
 
other
 horizontal spring applet

vertical spring applet


 
 


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