Week of November 9, 2015

Welcome to the third week of second quarter! Interims are just around the corner, and time is flying by!

This Week in AP Physics
On Monday we will take our test over our energy unit. On Tuesday we continue forward with momentum (ha ha.) Expect to do homework 1 and our first lab (on the impulse-momentum theorem) by the end of the week. Be cheerful: This unit has much shorter homeworks, and it integrates a lot of our previous topics, so it will feel a little better to you. 🙂

This Week in Physics
We will finish debriefing our introductory podcasts on forces, weight, and normal force and will finish assignment 1. (Note: 3rd period should take notes on those podcasts for Monday.) There will be a quiz over these topics on the day after we finish the assignment. Also due on the day after the assignment are your notes on the friction podcasts: Force Podcast 4 – Introduction to FrictionForce Podcast 5 – Static Friction, and Force Podcast 6 – Kinetic Friction. We will go over these in class and will then do an experiment on friction for which you will write a lab report (due when announced.) We will also do assignment 2 if we have time, but most likely it will spill into next week. 3rd period note:  Your lab report for the Human Cannonball Projectiles Lab is due on Monday, November 16. (Remember that the hardcopy will be due at the start of class on the due date; an 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. Be sure to use the lab document as well as the lab report writing guide and lab report rubric as you write.)

Cool Science of the Week
We are in a shower! A meteor shower, that is…Earth is currently passing through the debris left behind by Comet Encke, which last passed us by in October 2013. A comet is like a party that leaves all of its trash behind, and that trash consists of rocks and dust. When we pass through that garbage heap, some of those rocks become meteors that enter our atmosphere at high speeds. As they encounter ever-thickening atmosphere on their way down, friction causes them to heat up and burn, appearing as bright streaks in the sky. (There is no such thing as a shooting star; even as stars move, they are too far away for us to detect their paths. What we call shooting stars are really meteors burning up upon entering our atmosphere.) If you’d like to see this Taurid meteor shower (named after the constellation Taurus from which many of the meteors appear to emanate,) go out any night this week. Your best bet (barring clouds) is to go out on the night of November 11th: The meteor shower will be peaking, and we will have a new moon (i.e., the moon will not be up at night.) The best viewing times are the hours just after midnight, but if you go out at any time and are patient, you could see up to ten “shooting stars” an hour. Fireworks for Veteran’s Day! Get a lawn chair and a blanket and have fun!
View larger. | Two in one! Tyler Hofelich wrote:
This image from northwest Ohio shows a Taurid meteor AND the rare glimpse we had of the aurora borealis this past week. Click the photo for more images of the 2015 Taurid meteor shower. 🙂