Week of October 12, 2015

We are entering the last two weeks of the first quarter grading period. Keep going strong!

This Week in AP Physics
We will continue to explore unit 3 by finishing friction on Monday and doing homework 3 for Tuesday. We’ll do a quick lab on friction and explore terminal velocity, and then Newton’s third law and homework 4 will follow, time permitting. Your lab report for the Newton’s second law lab is due this Thursday, October 15. (Hardcopy is due at the start of class; upload  is due to TurnItIn.com by 3:00 of that day. Remember to write using Google Drive and share your document with me at alhsgb@gmail.com… Note that I do not use that for email correspondence.) Expect a test next week as our final grade for the quarter.

This Week in Physics
1st period: For Monday please take notes on Podcast 7 – Introduction to Projectile Motion part 1, Podcast 8 – Introduction to Projectile Motion part 2, and Podcast 9 – Introduction to Projectile Motion part 3. For Tuesday please take notes on Podcast 10 – Projectile Formulas, Podcast 11 – Projectile Sample Problem part 1, and Podcast 12 – Projectile Sample Problem part 2. We will spend the week covering these topics and doing assignments 3 & 4. We may get to our lab this week. Otherwise we will do it next week along with a test. The test will be the final grade for first quarter.
3rd period: On Monday we’ll finish unit 2 assignment 1 so that we can take a quiz over vector addition on Tuesday. Our next stop will be vector resolution, but we will go over this in class. I recommend that you wait to watch Podcast 5 – Introduction to Vector Resolution and Podcast 6 – Vector Resolution Sample Problem until after you take the vector addition quiz. During the remainder of the week we will do assignment 2 and take a quiz over vector resolution. If/when assigned, please take notes on  Podcast 7 – Introduction to Projectile Motion part 1, Podcast 8 – Introduction to Projectile Motion part 2, Podcast 9 – Introduction to Projectile Motion part 3Podcast 10 – Projectile Formulas, Podcast 11 – Projectile Sample Problem part 1, and Podcast 12 – Projectile Sample Problem part 2.
6th period: On Monday we will finish assignment 2 and will take the subsequent quiz over vector resolution on Tuesday. Also for Tuesday, please take notes on Podcast 7 – Introduction to Projectile Motion part 1, Podcast 8 – Introduction to Projectile Motion part 2, and Podcast 9 – Introduction to Projectile Motion part 3. For Wednesday please take notes on Podcast 10 – Projectile Formulas, Podcast 11 – Projectile Sample Problem part 1, and Podcast 12 – Projectile Sample Problem part 2. We will spend the week covering these topics and doing assignments 3 & 4. We may get to our lab this week. Otherwise we will do it next week along with a test. The test will be the final grade for first quarter.

Cool Science of the Week
NASA’s New Horizons space mission has sent a probe to Pluto, and the probe has beamed back some really interesting information! This week NASA announced that it discovered that Pluto’s sky is much like our own: blue! That means that if you were to stand on Pluto’s surface, the daytime sky would look similar to ours (and similar to Mars’ sky, as well.) This means that Pluto does have an atmosphere, although the atmospheric pressure is decreasing, likely due to it slowly freezing onto Pluto’s surface. Another great finding of the New Horizons mission is that Pluto has lots of water! Of course, it’s frozen, but nonetheless, it’s there. (Remind me sometime to tell you how astronomers think Earth got its water.) The next stop for New Horizons is the Kuiper belt, a giant ring of asteroids that is the source of many of our comets. The Kuiper belt lies outside of Pluto’s and Neptune’s orbits.
Blue haze around Pluto.
Composite photo of Pluto’s atmosphere taken by New Horizons

What is the Kuiper belt?