PHYSICS: Here’s a blast from the past on sound intensity and resonance. Hopefully the mic will be fixed soon!
Couple of items to apply for discussion – so how does the whole hearing thing work? I mean, I know the little bones in your ear move, but why? Is resonance involved? Great item for application/discussion. And here’s another – why would different violins produce different sounds? I mean, is a Stradavarius valued so highly just because of the name? Let’s talk more about that!
HON CHEMISTRY: Great review today! Since we didn’t have a mic, and since several of you were absent, I dug up an old chapter 8 review vodcast from a regular chem class. I think it will be very helpful for you. Even if you were in class today, I think it’d be a great help!!
New homework for tonight: Study for a possible quiz tomorrow on the 17 rxns and the activity series. It could also very possibly have a few equations to complete and balance. 🙂
Did you get the message? Test moved to Monday! Practice tonight, and make sure you have everything memorized. You can get help in memorizing the 17 types of chemical reactions on quizlet.com (and also on the polyatomic ions from last semester). Here’s a link to the 17 types of reactions on quizlet that Nicholas did last year – http://quizlet.com/11793692/chemistry-chemical-reactions-flash-cards/.
Another source of help is your online textbook at my.hrw.com. Click on the “Visual Concepts” or “Review Activities” tabs at the top of the chapter page for the extra tutorials and quizes. I love you and I’ll be praying for you as you study for your test!!
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CHEMISTRY: So tell me again – how do you know if a chemical reaction has occurred? Here’s the lecture on the evidences of a chemical change and the intro to balancing chemical equations. Great to be back to chemistry!
🙂
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Do you need the easy button?? How’s it going? You are going to survive, I believe in you!! I’d wish you good luck, but I know it really doesn’t have a thing to do with luck. You’ve been working really, really hard, and I know it’s going to pay off. I’m praying for you! I’ll be watching the site for questions that you might have for the next hour or so. I love you!!
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CHEMISTRY: Well, here it is, the very last lecture from chapter 6 – intermolecular forces. (Don’t forget they’re also called van der Waals forces!) Tons of application, from bugs walking on water to little fishes breathing dissolved oxygen. Let’s play with it tomorrow!
UPDATE – Now with sound!
Image source digitaljournal.com
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PHYSICS: So you can see sound?! Here’s the lecture from today – same wave stuff and echolocation, speed of sound, Doppler effect, sonic booms, – and throwing Jenny across the hall! Sorry about that, Jenny!!
CHEMISTRY: Like dissolves like – kind of a cool rule with lots and lots of applications! Here’s the lecture from Monday!
UPDATE – News vodcast, hopefully with sound this time!
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PHYSICS: Cool thing, standing waves! Here’s the lecture from Monday. Are you okay with constructive and destructive interference? Tomorrow….on to sound! 🙂
UPDATE : Now with sound!
How’s it going with the Lost Beneath the Comstock Load Project? Here are a few things to remember:
1. Your printer and the printer at your parents’ job will die/ run out of ink/ jam/ run out of paper/ explode, etc., so don’t wait until the last minute to print things out. And save, save, save, save, save, save, save, to several different places because your computer wants to eat your project!!
2. Make sure you make printed copies of the sources you use from the Internet and any books that aren’t in our library. Copy the first page and the page that you use, and highlight the portions that you use. Staple multiple pages.
3. Never use the URL in the internal documentation. Always use the title of the article or the heading of the website page, if it’s from the Internet.
4. What you had listed in your internal documentation should be the first thing you have written in each entry of your Works Cited. For example, the author, the name of the book, the Internet title, dictionary entry, etc. Never, never just include the URL for Internet sites in your Works Cited. Include the other important information as well.
5. Each time you mention one of the main 32 items in your paper, highlight it so it will be easy to see.
6. Your copied sources should be in the order that they occur in your paper. Your Works Cited entries should be in the order that they occur in your paper.
7. Make sure you write the internal documentation for your illustrations on your illustration and also in your paper. And don’t forget to include it in the Works Cited!
8. Double check to make sure you don’t have anything in the internal documentation that isn’t in your Works Cited, and vice versa.
May God bless you as you work!! I’m praying for you!!!
PHYSICS: Hey guys! Here’s the lecture on the properties of waves. Problems are pretty simple for you, I think. Do you remember the main formula from chemistry? Speed = wavelength x frequency (c = λf).
Easy peasy – and don’t forget the applications!