welcome to Physics 352/354 !

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
 

 
Monday,
January 30
Tuesday,
January 31
Wednesday,
February 1
Thursday,
February 2
Friday,
February 3
class
 finishing the friction lab, so wear appropriate clothes
short class schedule

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
 block F: we have to climb, so wear appropriate (lab) shoes

we do lab, so wear appropriate stuff
reading
(always done
before class)
 
pp 157 - top of 159:
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
p. 160 - bottom of 161

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)
 
active example 6-3
(page 162)
example 6-8
(p. 159-160) + the two paragraphs after the example

in-class
presentation

no presentation
6(73)

6(44)
written
homework
(by 5 pm)
6(1),
6(27)

by 9 pm today
 
5(27),
6(24)
 
 6(45, 70)
lab
 leave RED lab book by the black boxes, because we will be grading the A6,
newton's law lab
elevator lab (A8c) completed and handed in 
elevator lab (A8c) completed and handed in

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
friction labs (A7, parts A and D) completed and handed in
 
other
 
special tutorial help for people struggling with inclined planes and breaking up forces
 
 


 
Monday,
January 23
Tuesday,
January 24
Wednesday,
January 25
Thursday,
January 26
Friday,
January 27
class
 class does lab A8c
(elevator lab)
 in class, w.s. students do problems 6(8)
and 5(20)

hand out "complete guide to perfect force diagram solutions"
 C/D:class does lab A7 part a
& learns about static friction

F: only gets to learn static friction

all classes do 6(11) in class
 bring BOTH lab books to class today
extended weekend 
reading
(always done
before class)
figure 5-5 (p. 111)
&
 
example 5(9)
(bottom of p.128 - 130)
you will actually use these two tomorrow, but I dont want tomorrow's reading to be too heavy

6(1 up through the top of p. 141):

know the magnitude (formula) and direction of the kinetic friction force;
you will be quizzed on it
 p. 141 through the end of section 6(1), but skip example 6-2

know the magnitude (formula) and direction of the static friction force;
you will be quizzed on it
 
 
in-class
presentation


5(22)
C/D: prelab to
part A only of lab A7
done in BLUE lab book
(this will be graded in everybody's book at the beginning of class)

F: prelab to
part A only of lab A7


written
homework
(by 5 pm)
by 8 pm,
post your group's poster presentation for lab A6:
includes
1) ordered pairs & the value of the independent variable that remained constant;
2) graph with linear fit; 3) 5-column matching table;
4) conclusion
5) equal-sharing statement (that partner shared in the work) + signatures

the above stuff (except for #5) should also be in your individual lab notebook

card stock for the posters available in/near the black boxes
 
5(43)
&
5(25)

be careful on 25:
which way do you define + and break up forces
(look at example 5-9!!)
 
 for next monday,
6(1),
6(27)

is one of these an inequality?
(hopefully at least one of these youll do before you leave!)
lab
 
 
C/D: prelab to lab A7 (friction) part A only 
 F: prelab to lab A7 (friction) part A only
 
other
 

 
 

 
Monday,
January 16
Tuesday,
January 17
Wednesday,
January 19
Thursday,
January 20
Friday,
January 21
class
know what a scale reads/measures

know WHEN (UNDER WHAT CIRCUMSTANCES) a scale actually reads weight
know the difference between Newton's 1st law/2nd law pairs
&
Newton's 3rd law pairs
 C/D: see lab below
F: see lab below
in class, w.s. students will do problems 5(52... our first inequality problem)

&

6(26 ... our first problem with force triangles)

reading
(always done
before class)
pp 146-147 on pull scales

section 6(3,4)

 
 
5(5) and 5(6) 
in-class
presentation
problem 5(2)

follow the 7-step procedure


F:
problem
6(40 a ONLY)

C/D: problem
6(40 a ONLY)

problem
6(40 b ONLY)

written
homework
(by 5 pm)
problem 5(7), but ONLY concern yourself with the horizontal force(s) in the problem; ignore all vertical things

remember to refer to the 7-step procedure in your notes (both for the Fnet problem and also for the requisite dvat problem)

question 5(13);
this question has 2 parts:
1) why is the horse's logic faulty?
(why isnt the net force on the cart = 0)
2) assuming that the horse/cart actually do accelerate, what force actually DOES accelerate the cart forward?  what force accelerates the horse forward?
 
problem 6(38)

&

question 5(8); once again. explicity mention which of Newton's laws you are using in your explanations
 
 prelab to
lab A8c
(the elevator lab)

done in the red book
lab
 
 
 C/D:
prepare lab book
(including prelab and entering data table) for lab A6

read the lab so you know the 2 experiments that are being done!
F:
prepare lab book
(including prelab and entering data table) for lab A6


read the lab so you know the 2 experiments that are being done!
 
other
solutions to even problems in chapter 5 are posted...
chapter 6 coming

 
 


 
Monday,
January 9
Tuesday,
January 10
Wednesday,
January  11
Thursday,
January 12
Friday,
January 13
class
 
 all blocks:
lab A5

prepare lab book
 C/D:
test on everything
so far (1- and 2-dimensional motion)
 F:
test on everything
so far (1- and 2-dimensional motion)
 
reading
(always done
before class)
 5(3 UP TO "freebody diagrams)

also 5(4)

again, be able to write definitions and laws
page 122 from mid-page
(definition of Weight) to bottom of the page
 F:
Walker pages:
mid-page 110 to mid-page 113
 C/D:
Walker pages:
mid-page 110 to mid-page 113
finish section 5(3)
[from mid p. 113 up to section 5(4)]
in-class
presentation

4(33)



for today's class
(NOT monday)
Questions (not problems!)
5(1,5) on page 131

use Newton's laws explicitly as explanations for your answers!
written
homework
(by 5 pm)
see lab stuff below
 

 
questions (not problems!)
5(10, 17) on page 132

be sure to use N's laws explicity as part of your explanation!
lab
all lab A4 graphs in lab book along with all matching tables

measurements of
1) max height
2) horizontal range
3) time to max height
from y-vs-x graph done

calculations of same from graphs fits done
 prepare lab book for lab A5 wtih
ToC entry.
lab title and goals on new lab page,
data table
(5 columns & 6 rows)
 entered to cover a full 2 facing pages in the lab book
(block C, I will be there at 7:45 am if you want to start early)
 C/D:
lab A4 due at test time
F:
 lab A4 due at test time

 
other
 practice problems can start going up on the bulletin board in preparation for test next wednesday/thursday
deadline for bulletin board problems:
7 pm tonight
 
 


Monday,
January 2
Tuesday,
January 3
Wednesday,
January 4
Thursday,
January 5
Friday,
January 6
class
 
remind yourself of what we did in class friday before break:

what are the 3 conditions for throwing, kicking, hitting something if you want it to go farthest horizontally

review the dvat steps that we used to get the formula for horizontal range

 
 C and D:
watch one of the drop and launch movie clips

prepare lab book for lab A4
 F:
watch one of the drop and launch movie clips

prepare lab book for lab A4
 
reading
(always done
before class)
 
 
 
 4(5)
 5(1,2)

be able to write important definitions & laws in class
in-class
presentation


none

4(59)
written
homework
(by 5 pm)

 
assignment is
projectile problem C
(you should have at least 3 conclusions from your data table)

use this to collect data:
projectile applet
(but do NOT follow the instructions for problem C in the applet, but use the link at the very top of this box)
 
prelab to A4
done in the lab book
(remainder of lab does NOT have to be completed)
lab
 
 
 video lab A4
video lab A4
 
other
 

have you got the horizontal range solution down to 3 - 5 minutes? 
 
have you done 6 practice problems this week on 2-dimensional motion
november/december pages