10/10 – 10/14 (Beginning the Trio)

ORANGE: Homework Assignment is given RED: Assignment due in the box or for a stamp GREEN: Something going on at lunch PURPLE: Something going on at night BLUE: a link to what we watched

WHAT WILL HAPPEN THIS WEEK:

Mon (10/17) —

New seats!

Stamps from last week / Meet Table 1!

BOW

A look at the next two weeks

Joke Monday

Slide Show

Hand out Sheet 2.6 Packet 2 Readings

Hand out Sheet 2.7 Beautiful Patterns

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Tues (10/18) —

75pt Quiz 2 Handed out

FIRST ROCKETRY SESSION

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Wed (10/19)—

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Thur(10/20) —

LUNCH 75pt QUIZ 2 HELP SESSION

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Fri (10/21)

75pt Quiz 2 Due at 5:00PM

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WHAT SHOULD HAPPEN NEXT WEEK:

Mon (10/24) —

New seats!

Stamps from last week / Meet Table 1!

BOW

Joke Monday

SlideShow

Sheet 2.6 Packet 2 Readings Due at 5:00PM

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Tues (10/25) —

ROCKETRY SESSION

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Wed (10/26)—

Zachary Presents Quantum Physics 12:15 – 12:30

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Thur(10/27)

Guest Speaker — Joel Olson will present GO!

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Fri (10/28)

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PICS FROM LAST WEEK:

Will add captions later this weekend.

: Halloween’s coming

: Make sure you write out and answer the four questions. Easy credits.

: Physics pheeders for our first Feast and Film. The big one is coming up 11/11. Our pre-Thanksgiving feast. Mmmmmm . . . I can taste that green bean casserole already.

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: You have to have your finger walking done by WEDNESDAY, Oct 19th at 5:00PM.

: The greatest Teacher-Student-Teacher-Student-Teacher-Student combo.

: He started it all.

: The three amigos.

: Aristotle thought of the world as being made up of these four elements.

: The first periodic table!

: Ah . . . those were the days.

: Enter Leonardo Da Vanci

: He was one of the first people to consider gravitational acceleration since he wanted to fly.

: Da Vinci– An amazing engineer

: Look at the detail!

: This would have made a heck of a milittary weapon. Not sure if anyone actually built it.

: Nice complex pulley system for the early 1500’s

: BLown away by the detail

: A helicopter of sorts.

: He was into cadavers

: This cadaver must have not smelled to good.

: He wanted to jump off this nice building

: The Leaning Tower on OU campus!

: I’d get this tat. Maybe after I retire.

: Enter Copernicus. BEcame a hero on his death bed in 1543

: Copernicus

: Copernicus is in a few different video games.

: Giordano Bruno was the first martyr for science.

: He was burned alive by the Roman Inquisition in 1600 for various reasons. One of those was his undying devotion to the Copernican Model of the Heliocentric (sun-centered) universe.

: Now to 1604 and Galileo starts to attempt to prove that Aristotle was wrong.

: Watch how you make you letters in Physics.

: We recreate Galileo’s original inclined plane diluting gravity lab.

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: . . . “the three cups!!”

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: One of the results of the lab

: Galileo used bells, We used students looking down holes.

: These are the possibilities for kinematic relationships.

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: Our results from our inclined plane lab.

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: Never connect dots in physics.

: Galileo did a lot of amazing drawings of the “mountains” on the moon.

: Galileo is a much better artist than I am.

: The Campanile Bell tower of Saint-Mark in Venice Italy. It is where Galileo used his telescope.

: Galileo finally upset the church and state enough that he had to recant. “E pur si muove” was what he muttered under his breath as he sat back down. “And still it moves”.

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: Galileo’s finger is on display in Florence. That’s his middle finger by the way.

: NHS Physics girls get the Study Zombie Scholarship at the ACT Math Review last week.

: We talked about how Earth got its moon.

: Orpheus slammed into us early on in the Earth development. We had a ring around the Earth for a time (like Saturn), then it eventually it coalesced into TWO moons, then eventually they came together to form ONE big moon.

: The collision also gave us our 23.5° tilt. Thanks for that one Orpheus. Now we get to have four seasons a year due to the suns varying angle on our northern hemisphere.

: Some of our secant slopes (average interval velocities)

: Stegosaurus tail shows the increasing average velocities (with a 1 second interval). These are secant lines, but the combination of the 9 secant line slopes gives a better feel for the increasing velocity as the ball rolls down the ramp.

: This is my best guess for the tangent slope at the end of the graph (the 9 second mark). Looks like I am getting 7.5m/s.

: This is the basics of what it is to eventually take the derivative. Your change in time that you are measuring over. The closer the ∆t gets to zero, the closer the velocity gets to instantaneous.

: The smaller those ∆ts become, the closer the secant line gets to the tangent line.

: This was my attempt at showing the need for a high sample rate if you are going to get a real feel for what is going on with the data. If you sample this cosine wave every four seconds, you would think it was a straight line. You would have to sample it every 1 second to get the correct notion that it is a cosine wave. It is the same reason we are reducing the ∆t from 9 seconds down to a ∆t of 1 second. It gives us a much better feel for the changing velocity.

: For parabolas, we can fool the algebra into becoming calculus if we look at the midtime (NOT midpoint) of any particular segment. At the midtime, the illusive slope of tangent line comes into focus for just that microsecond because it equals the slope of the secant line.

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: m/s/s is the same thing mathematically as m/s^2 . . . but it is MORE correct conceptually to write it m/s/s because acceleration is measuring the change in velocity (m/s) over a certain number of seconds (s). I suppose the best way to write it would be (m/s)/s but no one does that. hmmm . . . maybe they should!?!

: Some answers on the back of 2.4

: Using the tangent slope = secant slope at the mid time, we can collapse each step down to an instantaneous point velocity occurring at the midtime.