Week of October 3, 2016

There are four weeks left to first quarter…Let’s keep going strong!

This Week in Physics
By Monday please be sure to take notes on Motion in One Dimension Podcast 9 – Introduction to Free FallMotion in One Dimension Podcast 10 – Free Fall Sample Problems, and Motion in One Dimension Podcast 11 – Terminal Velocity if you have not already done so. On Monday, Tuesday, and (possibly) Wednesday we will finish up our examination of the kinematic equations and free fall and do assignment 5 to prepare us for our  unit 1 test, which will be Wednesday or Thursday. Please read the following additional assignments for each class period:
1st period: We will take a quiz on Monday over the kinematic equations. Do not memorize them but be prepared to apply them to analyze problems. Anyone who didn’t finish assignment 4 in class should do so for Monday.
4th period: Same as 1st period
8th period: Anyone who didn’t finish assignment 4 in class should do so for Monday. Our kinematics quiz will be Tuesday.
11th period: Same as 8th period

Cool Science of the Week
Did you know that if you’re of European, Asian, or Middle Eastern origin, science says that 2% of your genes likely come from Neanderthals, and this makes you (and me) genetically less “fit”? Our Hominid relatives the Neanderthals (of which scientists say we have a common ancestor but are on a separate branch of the evolutionary tree – i.e., we are not evolved from Neanderthals) had about a 40% weaker genetic fitness than Homo sapiens (humans) due to many maladaptive genetic mutations. This lack of fitness likely led to the eventual extinction of the Neanderthal species. However, they interbred with Homo sapiens (us), essentially weakening the genetic makeup of the human species for today’s humans of Non-African ancestry. Neanderthals didn’t live in Africa, so humans of African ancestry did not experience this interbreeding and are therefore considered more fit genetically. These results were published this past June by the Genetics Society of America. Disclaimer: The results shared here are from scientists and are shared because this is a science-based educational website. All views of the creation of humans, including alternate views, are to be respected in my classroom.

Neanderthal man…looking for love in all the wrong places

Week of September 26, 2016

It’s the last week of September and the first full week of fall! Time is flying!

Please consider VOTING for our Marching Shoremen in the Best High School Band in Greater Cleveland contest! You can vote more than once (after a cooling off period.) We’ve moved up from 9th to 7th in a few short hours, so WE CAN DO IT!!! 🙂

Due to the special bell schedule and reduced class time this past Wednesday, we are repeating some of the things from last week’s blog because we did not get to them.

This Week in Physics
On Monday we will finish assignments 2 & 3 so that we can take a quiz over goal set 3 on Tuesday. Also for Tuesday please take notes on Motion in One Dimension Podcast 7 – Introduction to Kinematic Equations and Motion in One Dimension Podcast 8 – Kinematic Equations Sample Problem. Then for Wednesday please take notes on Motion in One Dimension Podcast 9 – Introduction to Free FallMotion in One Dimension Podcast 10 – Free Fall Sample Problems, and Motion in One Dimension Podcast 11 – Terminal Velocity. We will do assignment 4 toward the end of the week. Expect your unit 1 test early next week. NOTE: 11th period had the least class time with me last week due to the special bell schedule. You will follow these assignments one day behind the rest of the other classes. On Monday and Tuesday we will finish assignments 2 & 3.

Cool Science of the Week
In an interesting mix of chemistry, photography, and race relations, this video explains the evolution of the chemical composition of photographic film as companies have striven to correct an older bias toward light skin tones in pictures. Science plays a role in all facets of life!

Week of September 19

This week marks the interim of our first quarter – wow!

This Week in Physics
First of all, please sign up for Remind.com if you haven’t already. Second, please read the assignments for your class period.
If you are in 1st: On Monday we will take our quiz over both goal set 1 and goal set 2. In addition, by Monday please take notes on both Motion in One Dimension Podcast 5 – Introduction to Acceleration and Motion in One Dimension Podcast 6 – Acceleration Signs vs. Velocity Signs. We will briefly debrief these brief podcasts and will then toss some cars back on the tracks to analyze accelerated motion graphs. Next we will do assignments 2 & 3 together in class. On the day after we finish these assignments, we will take a quiz over goal set 3. For that day please also take notes on Motion in One Dimension Podcast 7 – Introduction to Kinematic Equations and Motion in One Dimension Podcast 8 – Kinematic Equations Sample Problem. When announced please also take notes on Motion in One Dimension Podcast 9 – Introduction to Free FallMotion in One Dimension Podcast 10 – Free Fall Sample Problems, and Motion in One Dimension Podcast 11 – Terminal Velocity. Expect a unit test by the end of next week.
If you are in 4th/5th: Your assignments are exactly the same as 1st period’s.
If you are in 8th/9th: For Monday please finish both assignment 1 and the work on goal set 2 from your goal pakcet. Then read the blog for 1st period (above) and follow it with a one-day shift so that your quiz is on Tuesday, and so on.
If you are in 11th: On Monday we will continue to work on assignment 1 and goal set 2 from our goal packet. If you do not finish in class, please finish both assignment 1 and the work on goal set 2 from your goal packet. In addition, due Tuesday, please take notes on both Motion in One Dimension Podcast 5 – Introduction to Acceleration and Motion in One Dimension Podcast 6 – Acceleration Signs vs. Velocity Signs. On Wednesday we will take a quiz over goal set 1 and goal set 2. Next we will do assignments 2 & 3 together in class. On the day after we finish these assignments, we will take a quiz over goal set 3. For that day please also take notes on Motion in One Dimension Podcast 7 – Introduction to Kinematic Equations and Motion in One Dimension Podcast 8 – Kinematic Equations Sample Problem. When announced please also take notes on Motion in One Dimension Podcast 9 – Introduction to Free FallMotion in One Dimension Podcast 10 – Free Fall Sample Problems, and Motion in One Dimension Podcast 11 – Terminal Velocity. Expect a unit test by the end of next week.

Cool Science of the Week
Astrophysicists trying to understand the nature and origin of the universe (from a scientific perspective) often search for gravitational waves, or distortions in the dimensions of space and time, as predicted by Einstein’s general theory of relativity. Recently scientists from the LIGO (an observatory run by Caltech and MIT in Pasadena) detected gravitational waves from a collision of two black holes that are 1.4 BILLION light years away. Nothing, including gravitational waves, travels faster than the speed of light (which Einstein also proved), so, in scientific terms, that means that the collision occurred 1.4 billion years ago, which also means that these black holes are now most likely one single supermassive black hole!

Stupid Awesomeness of the Week

Video link

Week of September 12, 2016

This Week in Physics
We will start off the week by examining graphs of position v time and velocity v time in ever increasing depth by completing assignment 1 together in class. We will also spend two days learning how to write lab reports. The following documents will guide us:

Your lab report is due on Friday, September 16 at the start of your class period. You will need to turn in one hard copy of your report in class, and you will need to have one person from your writing team upload one copy of your report to TurnItIn.com. The class ID is 13544558, and the password is Einstein. You can upload your report directly from Google Drive to TurnItIn.com using these instructions. The upload to TurnItIn.com is due by 3:00 on Friday.

Toward the end of the week, depending on the pace of your individual class, we may take a quiz over learning goal sets 1 & 2. Then, if assigned, please take notes on Podcast 5 – Introduction to Acceleration.

Cool Science of the Week
This past week the FDA (Food and Drug Administration) banned nineteen ingredients commonly used in antibacterial soaps, citing potential health risks from long-term use. They acknowledged that simply washing with regular soap and water is just as effective as using soaps with antibacterial ingredients. A side benefit of this decision may be to prevent bacteria from evolving to be resistant to antibacterial chemicals, which are still used appropriately in such settings as hospitals. We do know that bacteria can become resistant to antibiotics, and researchers this week shared evidence of this occurring within the confines of a petri dish. Bacteria that can resist antibiotics and/or antibacterial chemicals can become a threat to the health of humans and other living organisms.

Week of September 5, 2016

Happy Labor Day! This national holiday honors the hard work and sacrifices of the citizens of the labor movement along with their contributions to our country.

This Week in Physics
Early in the week we will continue our experiment on uniform motion. At the conclusion of the experiment we will analyze our results together and draw conclusions. For the day after your group has collected and analyzed your data, your homework will be to take notes on the very short Podcast 4. (I will announce this in class so you know exactly when to watch that podcast.) We’ll then discuss the content of that podcast and will complete assignment 1 from unit 1 together in class followed by a quiz as announced. Next Tuesday and Wednesday (September 13 and 14) we will discuss how to write lab reports, looking at both the lab report writing guide and the lab report rubric, and we’ll use the Chrome Books to start writing. Your lab reports will be due on Friday, September 16, but please don’t start writing until we begin with the Chrome Books in class.
*Pro-Tip: One of your fellow students pointed out that http://www.wixsite.com/ allows you to create your own mini web page to organize your bookmarks for all of the websites your teachers give you. It’s free and easy to use. Maybe you’ll like it!

Cool Science of the Week
We discussed multiple dimensions in class this past week, but it sure is a hard thing to imagine for us four-dimensional mortals. This video helps make it a little clearer…. Of course, we can only prove the existence of four dimensions, but physics speculates that there could be many more!