Askey Physics

All things Physicsy

11/3 – 11/7/14 (Free Fall)

Posted on November 9, 2014 by daskey

THIS WEEK:

Mon- Slide Show, BOW, JM, Notes: Studying g HO 4.4 Birth of Blue Equations

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Tues- –> NO ROCKETRY <– work on Blue Kinematics

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Wed- HO 4.5 Blue Trio Graphs

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Thur – MICHAEL SLEMMON’S will be here from 12:12 – 12:52 to talk about “Semester at Sea and Other Adventures”. Sheet 4.3 Reading due at 4:30PM; HO 4.6 Go outside and determine launch velocities.

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Fri- HO TAKE HOME TEST #4 Side 1 and 2; Start Vectors?

LAST WEEK:

Mon- JM, talked about week; BOW; HO 4.1 Derivatives

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Tues- ROCKETRY; Discussed 4.1; Handed out 4.2 Began discussing Free Fall

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Wed- Dropped balls in the classroom; Discussed Sig Figs

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Thur – Went to the stadium and dropped balls; Talked more about Sig figs, Collected class data,

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Fri- PARENT / TEACHER CONFERENCES

TWO WEEKS AGO:

Mon- TRIBE DAY#3; Must have at least 1/2 the Take Home Test done.

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Tues- RED DAY for THT3 NO ROCKETRY MEETING

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Wed- WRAP UP DAY FOR PACKET 3; Slide show; JM

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Thur – 461 points in one day!! 200pt TEST 3; Turn in 100pt Packet 3 (with attached 125pt graded THT and 36pt Division Time sheet); Turn in 100pt Notebook

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Fri- Halloween; Feast and Film.

: Found these guys walking the rope at OU Friday.

: Good guy Jupiter

: One of the homework’s from Packet 3

: Packet 3 — Exceptional notes

: Packet 3 — Exceptional notes

: Packet 3 — Exceptional notes

: Packet 3 — Exceptional notes

: Packet 3 — Exceptional notes

: Packet 3 — Exceptional notes

: Sheet 4.1

: 4.1

: 4.1

: 4.1: You see these four together a lot in a quartet.

: Some sources for graphing functions

: Remember that the derivative of a function at some point along the function os the slope of the tangent line.

: On the left: An example of the velocity having a value and the acceleration being zero. On the right: The velocity might be zero (like at a turn around point and there still is an acceleration (because there is a slope on the v vs. t graph. Remember that acceleration is the CHANGE in velocity through a time NOT velocity over time.

: Botball is gearing up for our in house tournament on the evening of Monday 11/24. Here are some of the groups ideas so far. Many works in progress.

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: this is a reminder that you can flunk every test in here (even after blue day) and still pull a solid C. The class average on tests (after blue day) is a 79%. You can still pull an A with that test average.

: Ball Drop from the ceiling

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: We modified an Orange Kinematic equation to determine what the acceleration was in the classroom.

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: 1st hour results of classroom drop.

: 2nd hour results of classroom drop.

: 3rd hour results of classroom drop.

: 6th hour results of classroom drop.

: 7th hour results of classroom drop.

: Significant figures raise their ugly head. Measured numbers have an accuracy (or tolerance) that goes with each one of them. The measured nu,her is tagged with this accuracy and carries that accuracy with it throughout calculations.

: Coefficients are not measured (they are just mathematical) so they have an infinite nu,mbar of sig figs.

: Every experiment is limited in accuracy to it’s least accurate instrument.

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: First IFFY is the last SIGGY.

: when reading the measured number left to right

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: Writing 40,522 with three sig figs. Trailing zeros (to the left of the decimal)

: When multiplying or dividing numbers your answer is limited to the number with the least number of sig figs.

: the accepted values of the acceleration due to gravity on earth at sea level. Notice “g is a magnitude and therefore a positive number.

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: Trailing zeros to the RIGHT of the decimal ARE significant because they show accuracy.

: Now that you know a little about sig figs, I will start taking off a point when I see digital diarrhea.

: Sometimes you need scientific notation to write numbers with the right number of sigs.

: Here was the problem with dropping the balls from the ceiling. The time limited us to 1 siggy.

: We went to the stadium to get our time above 1 second so that we went from 1 sig fig in our time to two sig figs. Remembver human reaction time is around ±0.15 seconds.

: Stadium drop . . .

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: Air drag is a problem, but our height was not high enough to cause air drag to be a big problem. It would have been a much bigger problem if we had gone to Gaylord stadium,

: The D in the Air Drag Equation is called a drag coefficient and is looked up in a book like this.

: 1st hour data from the stadium. Having two siggies is much better than having only one sig fig.

: 2nd hour stadium data

: 3rd hour stadium data

: 6th hour stadium data

: 7th hour stadium data

: The red dots are precise, but not accurate. The green dots are precise AND accurate.

: The precent error formula.

: The best site I have seen for ACT review.

: This store sells pies.

: Halloween

: Feast and Film on Halloween

: Halloween

: An example of my schedule. You should have something similar type of reminders for your schedule. As you get busier, you need to write it all down.

: Which is why grading is delayed

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: Trifecta for this week. Not looking good so far.

: 2nd hour?

: This is for sale. Money goes to Cantina.

: Back of subs

: Cantina gave $30 to get Drew a Special Olympics Letter Jacket.

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