Monday, 10-05-09:
  • In Class:
    • Review Kinematics test
    • Use AP Scoring guide to check requirements for points
  • Homework:
    • Free Body Diagrams Packet.
      • Choose a directly to be positive.
      • Use four letter notation to identify forces. For example: Fgeb = Force of gravity, earth on ball.
      • Arrows represent forces. The size of the arrows should approach the general size of the forces. The direction of the arrows should accurately represent the direction of the force involved.
      • page II-5: Free body diagrams row with stick figure and boxes 1 & 2 (all three)
      • page II-6: part a
      • page II-9: all (Free-Body Diagrams-1)
      • page II-10: all (Free-Body Diagrams - 2)
  • Note:I will be at a meeting Tuesday. You will have to read stuff and read it to understand and apply it to do some things on Tuesday. Don't throw that time away. Be positive. Be motivated. Be responsible for your own learning.

Tuesday, 10-06-09:

In Class: Pair up with someone and compare your Free Body Diagram Packet Work

Homework:
  • Read 4.1 (Forces) pg 81-top of 83 & 4.3 pg 84-87 Sections on Newton's Second Law.
  • Record Notes on section, and notes MUST include:
    • Prediction for content.
    • Two things you had already knew.
    • Two things that are new to you.
  • Finish all the Free Body Diagram Worksheet Problems, it's due tomorrow (Wednesday 10/7)
    • The arrows must be of appropriate size and direction, and it must be labeled correctly.
  • Unit 3, Introduction to Forces Worksheet 2, Force Diagrams

Wednesday, 10-07-09
  • In Class:
    • Rvw Free Body Diagrams
    • Discuss N2L
  • Homework:

Thursday, 10-08-09:
  • In Class:
    • I didn't get the chance to speparate the classes from one another. Here are the notes from a variety of classes today.
    • Rvw components (front side of ws from yesterday
    • Rvw Free Body Diagrams from #5,6 of yesterday's ws.
    • Take data for Chair Lab
  • Homework:
    • Do the first page of this worksheet (it was also handed out in class):
      • Note: Recall from class: F(gravity) = mg
      • g is the gravitational field strength of Earth. turns out for us it is roughly 10 Newtons of force per Kg of mass. That means Earth exerts a gravitational force of 10 Newtons on every kg of mass. g=10N/Kg
    • Chair Lab:
      • draw the free body diagrams for each chair & student pull. By stating chair & student, I am trying to state that my SYSTEM is both the chair & the student. I mean I am analyzing the motion of the chair and student combined.
      • State how the F(total-y) and the arrows in the y-direction relate to the motion of the system vertically.
      • State how the F(total-x) and the arrows in the x-direction relate to the motion of the system horizontally.
  • If possible, get a Helium filled balloon to use in class on Friday & for a home-lab over the weekend.

Friday, 10-09-09:
  • In Class:
    • Review parts of yesterday's worksheet.
    • Review F(gravity) = mg
    • Review N2L in component form.
    • Begin Buoyancy Lab.
  • Homework:
    • Graphical Addition of Force vectors worksheet: do this GRAPHICALLY when asked.
    • Finish (or begin and finish) Buoyancy lab.
      • determine the buoyant force on a helium balloon.
    • DO Helium balloon car lab.
      • roll windows up, turn fans off.
      • put balloon in back seat so that the balloon does not scrape the roof, doors, or seats.
      • make a prediction for what will happen when you:
        • speed up going forward
        • go at a constant speed forward
        • slow down going forward.
        • drive in a clockwise circle
        • drive in a counterclockwise circle.
      • Now that you've made a prediction, test it.
      • NOTE: WHEN YOU DO THIS, do this in an empty parking lot. Do NOT do this while driving city streets or highways. Feel free to bring your family with you.

Monday, 10-12-09:
  • In Class:
    • Review:
      • Balloon & buoyancy
      • Balloon & car lab
      • Chair lab
      • Graphical addition of forces
      • N2L
  • Homework:
    • From worksheet you already have: Unit IV: Worksheet2 - do the rest of # 5&6 on back.






Tuesday, 10-13-09:
  • In Class:
    • Students can team up to compare their solutions to the homework
    • Student should do #'s 4-8 from the Unit IV worksheet 3 (you should already have this worksheet)
  • Homework:
    • Read 4.5 & 4.6. Do NOT focus on the sample problems. In fact, do NOT read the sample problems.
    • Take notes on the text.
    • Take notes on the figures within the text (NOT the sample problems).

Wednesday, 10-14-09
  • In Class:
    • Review Unit IV WS 3 number 4.
  • Homework:
    • Skip numbers 5 & 6 for now.
    • Do numbers 7 & 8 from Unit IV WS 3.
Thursday, 10-15-09:

Monday, 10-19-09:
  • In Class:
    • Rvw HW
    • Post Assignments
    • Clicker Questions (didn't get to it)
  • Homework:
    • Read Friction
      • Ch 4 Section 6 Some of the samples are worthwhile for getting a feeling for things. Think about both friction & Newton's Second Law when reviewing the samples.
    • Read Gravity: pg 87 & 88
    • Do PS 4.2-35, 37, 39, 40 (answers: 55.2 deg & 167N)

Tuesday, 10-20-09:
  • In Class:
    • Review # 35.
    • Work on problem set.
  • Homework:
    • Finish Problem Set 4.2
    • Do Pre-Lab for Magic Glider Friction Lab.
        • Pre-Lab:
        • We will Plot F(normal) vs F(friction) of the object that is being moved with glider or plastic base.
        • We will use either spring scales or force sensors attached to the computer to measure the force of the pull.
          • Draw a free body diagram of the glider pad with a weight on it being pulled at a constant speed.
          • Draw a free body diagram of the glider pad with a weight on it being pulled with a changing velocity.
          • A glider pad with a weight was pulled, but is no longer being pulled. It was moving at some velocity, now it is coasting down to a stop. Draw a free body diagram of the glider pad with a weight when it is no longer being pulled, but is coasting to a stop.
          • What will you measure, how will you calculate or determine F(normal)?
          • How will you determine F(friction)?
  • Homework:
    • Do Pre-Lab
    • Finish PS 4.2
    • Read Friction & gravity stuff from book.

Wednesday, 10-21-09:
  • In Class:
    • Rvw #35
    • Begin Magic Glider Lab
  • Homework:
    • MAKE SURE THE PRE-LAB QUESTIONS from Tuesday are done in your lab notebook.
    • Use the pre-lab questions to determine how you will measure F(friction)
    • You got a "Changing Representations" worksheet. Do the following
      • Changing Representations 2, page II-38
      • Changing Representations 5, page II-41 letters b & c
      • Changing Representations 9, page II-45, right hand column
        • Note: when they say apply Newtons Second Law (N2L) in component form, they mean do N2L in the x-direction. Then do N2L in the y-direction. That means do something like:
          • F(total-x) = F(this-x) + F(that-x) + F(other-x) = ma(x)
          • The (stuff in parenthesis) = subscripts.

Thursday 10-22-09:
  • In Class:
    • Work on Magic Glider Lab
  • Homework:
    • Pick another problem from the Changing Representations w.s. to do. Your pick.


Friday, 10-23-09:
  • In Class:
    • Finish plotting data.
    • Should the y-intercept = 0? If yes, then (when inserting the line of best fit) you can click a box to force it through zero. If no, then leave the line be.
    • Rewrite the equation for the slope of the line from y=mx+b to the actual values. Recall that the line on a position vs time graph is y=mx+b, but in that case it becomes d=vt +d(original). There is also a meaning for the y=mx+b graph of friction vs normal force.
    • Determine the value of the slope of the graph. What does that represent?
    • How would you change the slope of the graph?
    • How would you change the y-intercept of the graph?
    • Compare your data to other groups. How close are the values?
  • Homework:
    • Remember I will be out on Friday. You should be ready to finish the lab & work on the homework problems below.
    • this w.s.external image pdf.png FrictionalForces-u5ws4-pdf.pdf for Monday.
    • Finish the lab:
      • Data section should include your raw data, AND a printout of your graph. copy & paste graph into word so you can get two graphs on each sheet of paper. attach the graph to your lab notebook.
      • Analysis:
        • We did this to get acceleration (or that to get F(friction)).
        • Plotted friction vs normal. Best fit line gives us the other.
        • Coefficient of friction is this.
        • Would do that to change the slope.
        • Would do this to change the y-intercept.
        • Our data appears good, bad, or ugly when compared to other student group coefficent data.
        • Sources of uncertainty include things like how we measured that deal with the stuff, the stuff on the deal, how the thing went like that. We'd reduce these uncertainties by having a thing like this (that wouldn't cost any money).
      • Conclusion:
        • we measure this got that plotted and found coeficients by using this thingy.
        • our data appears to be good/bad by comparing it to values in tables and classmates.
        • this class is awesome.
*


Monday, 10-26-09:

  • In Class:
    • Review Magic Glider Lab.
    • Work on Unit V, WS 4 #5 in class
    • the word 'gravity' can no longer be used unless in one of the following phrases, "force due to gravity", or "gravitational field strength". Use of the word gravity, lacking these phrases will result in 75 demerits, 10 push-ups, 5 burpees, and 15 deep knee bends. And your lab partner can help you out.
  • Homework
    • Finish Unit V, ws 4
    • Study for test on forces this Wednesday

Tuesday, 10-27-09:
  • In Class:
    • clarify h.w. assignments (PS 4.1, 4.2, the worksheets, & hw listed above should be ready to turn in Wednesday)
    • rvw UV, ws4 #1
    • rvw vectors, forces, and vector addition, vector resolution,
    • rvw N3L pairs
    • rvw interactions and forces vs motion
  • Homework:
    • Prep for Wednesdays test.

Wednesday, 10-28-09:
  • In Class:
    • Test
  • Homework:
    • Takehome test

Thursday, 10-29-09:
  • In Class:
    • Review Test
  • Homework:
    • circular motion stuff
    • Read Flying Pig Lab so you can conduct the lab Friday with the sub.
      • No Lulai to talk to. You've gotta be ready to do it.
      • Plan what to measure.
      • Plan how to measure the stuff you will measure.
      • you will need to determine the angle the leash makes with the vertical.
      • you need to time stuff.
      • you need to measure some distances.
      • Should F(tension) be <=> F(gravity-pig)?
    • Read about a(centripetal), F(centripetal), v(tangetial)
      • Chapter 7, sections 3 & 4
    • there are a few ways to go:
      • a(c) = a(net radial) = r x w^2 = v(tangential^2) / r
      • v(tangential) = 2pi r / T = r x w
        • note 2pi x r / T is the circumference of the circle divided by the time it takes to travel the circle. it's distance divided by time.


Friday, 10-30-09:

    • In Class:
      • Lulai left us all by our lonesome :)
      • Worked on flying pig lab
    • Homework:

Monday, 11-2-09: (updated by kristina)
  • In Class:
    • discussed/finished flying pig lab
  • Homework:
    • car is on a banked road. draw a free body diagram for A) the car parked on the road and B) the car zooming at gazillion mph on the road
it looks sorta like this. the car is angled on the banked road. it's facing forward.
external image 112_0702_02z+2008_dodge_viper+front_banked.jpg<---- lulai is putting in extra hours to save up for one of these. a minivan would just cramp his style
    • the flying pig returns....
we are now trying to collect the flying pig's poop. measure the height of your pig as it flies above the ground. determine the circumference of fence needed to enclose the poop as it is expelled from the flying pig. i think lulai said to assume that the poop is going straight down, but i'm not quite sure.....

Tuesday, 11-03-09:
  • In Class:
    • Rvw Flying Pig
    • Begin 9-1 physics packet w/ clickers
  • Homework:
    • Finish the pig poo catcher. Remember that things dropped from the pig do have an initial velocity in the horizontal direction.
    • Do the 9-1 packet:
      • pg 38 #3-5
      • pg 39 #1-6
      • pg 40 #1-5
      • pg 87 #11


Wednesday, 11-4-09
  • In Class:
  • Homework:
    • WS 2: Problems 1 and 2
    • WS 3: Table

Thursday, 11-05-09:
  • In Class:
    • Rvw WS 2 & 3
  • Homework:
    • Read Ch 6 Section 1
    • Do worksheet packet titled "9 Impulse and Momentum"
      • #1-7, 9-13
We will now be moving on to the Momentum page.
For information after 11-05-09, go to the Momentum page.

    • ----Old Stuff----



      • Friday, 9-26-08:* In Class: Do N3L (newton's third law lab). Rvw W.S on free body diagrams. Note:* Check the packets for information on free body diagrams.* Check your book for information on free body diagrams and check the Mullins noteson forces.
        • I prefer the notation where each force is labeled with an upper-case F and followed by subscripts that remind us what forces we are discussing. For example Fg-b (where g-b would be subscripts) for Force of gravity on the ball.
    • Homework:
      • On the new packet try:
        • Page Column Portion
        • II-9 all all
        • II-12 middle all
        • II-13 middle all
        • II-14 left all
        • II-15 top row a
Monday, 9-29-08:
    • In Class:
      • Rvw N3L lab
      • Rvw Forces are when two objects Interact.
      • Rvw Free Body Diagrams
      • Rvw questions from Friday.
    • Homework:
      • Do Unit IV: Worksheet 1
Tuesday, 9-30-08:
    • In Class:
      • Revew N3L interactions
      • Review Unt IV Worksheet 1.
      • Do N2L in hallway wth chair.
    • Homework:
      • Worksheet
Wednesday, 10-01-08:
    • In Class:
      • Rvw Unit IV WS1
      • Do lab: How do Weight (force due to gravity) and Mass Relate?
        • What sort of Graphical Relationships exist?
        • From the graphical relationship, what mathematical relationship can we find?
        • Add a best fit line through the data.
        • Using y=mx+b, what do y, m, x, and b represent?
    • Homework:
      • Do Problem Set 4.1:
        • Conceptual Questions 2, 9
        • Chapter Review Problems: #1,6,7,12a
    • <http://www.theonion.com/content/node/39512>
Thursday, 10-02-08:
    • In Class:
      • Review PS4.1
      • Prep for Sign hanging lab.
    • Homework:
      • Prep for Force Statics Sign Hanging Lab (problem solving lab- you should have a method prepared to do the lab tomorrow).
      • Begin Problem Set 4.2: Ch 4 Rev Probs #15 (more coming, but #15 is a good start & should tie in nicely with the lab).
        • We've covered much of the material in 4.1, 4.3 (except universal gravitation), 4.4, & 4.5 These would be good sections to review. We've addressed them through classroom discussion, worksheets, labs etc...Reading them wouldn't hurt. Taking succinct notes would probably help.
Friday, 10-03-08:
    • In Class:
      • Rvw #15
      • Do Hanging Masses Lab
    • Homework:
      • Problem Set 4.2: Add #16-18
    • Note: Systems that have an acceleration = 0 are called STATIC SYSTEMS.

Monday, 10-06-08:
    • In Class:
      • Work on Changing Representations w.s.
    • Homework:
      • Do Changing Representations #5 a,b; 7; 8 left, right;
Tuesday, 10-07-08:
    • In Class:
      • Rvw Changing Representations #7
      • Rvw PS 4.2 #18
      • Do a couple of clicker questions
    • Homework:
      • Read 4.6 (the section on friction for sure, I think it was 4.6)
      • Take Notes on the reading.
      • Explain each figure or sketch in the section (excluding those in sample problems).
Thursday, 10-09-08:
    • In Class:
      • Work on Magic Glider Lab.
      • Plot data.
    • Homework:
      • Finish problem set 4.3: Ch 4 Problesm 35, 37, 39. add problem # 40, 42
    • Note:

Tuesday, 10-14-08:
    • In Class:
    • Review ws 9-2 circular motion stuff
      • Begin Flying Pig Lab[[file:farming-flying-pigs-pdf.pdf]
    • Homework:
      • Finish plan for what to measure (and how), what to calculate (and how) to finish the lab.
      • Read 7.4
      • Do PS 7.1:
      • Conceptual question #7,13
      • Problem #23
Wednesday, 10-15-08:
    • In Class:
      • Review Circular Motion
      • Finish Flying Pig Lab
    • Homework:
      • Finish P.S. 7.1
      • Do Ch 3 packet (skip #6)
Monday, 10-20-08
    • In Class:
    • Rvw parts of the packet.
    • Begin Penguin Problem.
    • A penguin slides down an icy hill (hill has an incline of 10 degrees) at a constant speed.
    • Find the coefficient of kinetic friction btn the ice and the penguin.
    • Homework:
    • Finish the penguin problem.
    • Recheck mc questions from packet (#8-10)
    • Recheck packet free response questions (especially #2)