Way to go, 9th and 10th! Your last project on a Northern State turned out fantastic! I hope you enjoyed creating "apps" for highlighted points of your state just as much as I enjoyed reading the information under each picture. Many of you were worried about your drawing abilities but the pictures turned out great!
Here are each of the iAmerica projects:
Seth and the state of Vermont...
The state of Maine done by Angela...
Dylan's state of Massachusetts (also called "iMassuachusetts")...
New Hampshire comleted by Christian....
And Ben's state of Maryland...
Altogether these iAmericas make a statement piece!
Just a reminder to my 9th and 10th US Geography class that your Southern State Workbook will be due Friday, April 29th, at the beginning of class. I will also be handing out the information for your next project which will be over a mid-western state of your choosing. There are twelve states to choose from for this next project and a list of these states can be found on p. 171 of your textbook. Al information regarding this project can be found by clicking on the link to the right entitled: PROJECT: Mid-Western State Float. You will receive a handout of this syllabus in class tomorrow. Looking forward to seeing your finished projects!
We are winding down to the last few weeks of school! The excitement over graduation and summer break is certainly building! But before we go we have one more project to complete for the 11th and 12th grade World History class. Be sure to check out the last project listed under World History to the right entitled: Russian Czar Un-Birthday Gift. By Friday, April 29th, you are to have chosen which czar you would like to decorate your box with. Be sure to be creative, neat, and inclusive on key information about your chosen czar! Can't wait to see the final project by the end of class on Friday, May 13th!!
With the amount of students who have been gone due to illness I wanted to post the video that we watched in Physics class on Wednesday, April 13th, that describes Coulomb's Law. At the beginning of section 18B we learned how a charge can be detected by using an electroscope and what type of charge that's induced. For a review of this concept watch this video:
An electroscope, however, cannot quantify the charge. This is where Coulomb's Law comes in to play. Please make a note of the equation associated with Coulomb's Law and how closely it resembles the law for Gravitational Force. This video from Bozeman Science will explain the law by using an atom's electrons and protons:
Now Electrostatic Force and Gravitational Force, though closely resembling each other in form, are in fact different. There are two differences noted which will key to know for the test on Friday, April 15th. Whereas Electrostatic Force is both a repelling and attracting force, Gravitational Force is simply an attracting force. Also, Electrostatic Force deals with the charges of the objects while the Gravitational Force deals with the masses of the objects.
You will also notice in Coulomb's equation that there are absolute value signs encasing the charges (q). Remember that this means the charges will always be positive.
As for the very last section under 17B, be sure to pay attention to the SI units for the electrostatic force. This will also be on the test. Please let me know if you have any questions!
Since there were a few students who were absent from class on Thursday, March 31st, and Friday, April 1st, the 11th and 12th grade Physics class finished section 17B. We had been discussing some basic properties of fluid mechanics in section 17A butt 17B presents fluids now in motion (hydrodynamics). For this we use ideal fluids as they flow through a flow tube. Pay careful attention to how they flow: laminar or turbulent. The Equation of Flow Continuity helps explain the flow of fluids through a flow tube as demonstrated by Mr. Anderson on the following Bozeman Science video:
Bernouilli's Principle demonstrates the conservation of energy as it flows from one point through another. This equation accounts for the pressure, potential energy, and the kinetic energy. This second video by Mr. Anderson and Bozeman Science will demonstrate this principle and equation.
Now we come to the last few segments of section 17B dealing with the flow of fluids, mainly gas in this instance, that provide lift for an airfoil. Basically we're talking about the mechanics of an airplane wing and how the plane is able to fly due to what is known as the Coanda Effect. The following video will demonstrate how the Coanda Effect and Newton's 3rd Law, for every action there is an opposite and equal reaction, work together to achieve lift.
In closing, the viscosity, or the measure of the resistance of a fluid to flow, will ultimately determine how freely a fluid will actually flow. We see fluid mechanics used today in wind turbines, for example. These are built tall enough to expose their blades to the smother winds rather than the more turbulent winds closer to the ground. In turn wind energy is converted into mechanical energy with an efficiency of up to 50%!! Cars are also manufactured with aerodynamics in mind to allow fluids (air) to flow over the car to help with fuel efficiency.
If you have any questions concerning this section, please be sure to ask me in class. There is a quiz scheduled over 17B for Wednesday, April 6th, and the test will be Thursday, April 7th.
On Thursday, April 7th, 11th and 12th World History class will be watching a documentary about the history of the King James Bible done by the BBC and posted on YouTube. If you would like to watch again simply click on the video link above.
Research papers are due this week but because I had an old school calendar when I made out the schedule I originally had it down for papers to be due on Tuesday, April 5th. Unfortunately that falls right in the middle of SAT testing. So I have moved the date to Friday, April 8th. Please have you paper completed and in a bracketed folder when you come to Physica on Friday. I look forward to reading them!!
