Monthly Archives: August 2012

Physics 8-24-12 Velocity Problem, #11

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PHYSICS: Hey guys, here’s the work we did on # 11 from last night’s homework. So can you work it by yourself now? Don’t just copy your notes! Also, don’t forget to give the problems on the syllabus a fighting chance. (Jeremy – the old varsity try?? Is that it? Still doesn’t sound exactly right.) Come on, you can do it – and let’s crank it up a notch Monday!

UPDATE: Since we had to use the distances from the flag as distances, not displacements, you’ll need to use speed or velocity? What do you think? Makes a huge difference!
🙂

I almost forgot! Here is the extra problem that I was telling Wil about today in class. Not exactly like number 11, but it kind of uses the same type of thought processes. Two students walk in the same direction along a straight path, at a constant speed – one at 0.90 m/s and the other at 1.90 m/s. How far would the students have to walk so that the faster student arrives 5.50 min before the slower student? (answer……………………570 m)


flickr photo by darkmatter

Chemistry 8-24-12 SI Measurements

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CHEMISTRY – Hey guys, so is all the info on SI measurements starting to come back to you? Here’s the lecture from Friday. I’m sure it’s mostly review from your physical science days, but it’s a great opportunity to refresh what you’ve learned and to get ready to begin using it! We’ll do derived units Monday.

Any questions about the take home labs? Post a comment here and I’ll try to help. And have a great weekend!!


flickr photo by Nils Geylen

Hon Chemistry 8-23-12 SI Measurements, Pt. 1

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HON CHEMISTRY – I forgot to mention the great job you did on the Oobleck lab the other day! Ever heard of a non-Newtonian fluid? Well now you have!

Soooooooo, anyway, here’s the lecture from Thursday on the intro to SI measurements. I’m sure it’s mostly review from your physical science days, but it’s a great opportunity to refresh what you’ve learned and to get ready to begin using it. We’ll finish up with derived units tomorrow. The quiz on SI prefixes will be next Tuesday!!



flickr photo by areta ekarafi

Physics 8-23-12 Motion and Displacement

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PHYSICS – What a “moving” lesson today! Get it? “Moving”? Okay, okay, I’ll stop. Here’s the lecture from Thursday on the intro to motion. Great beginning to kinematics! We’ll start out simple on the problems and then work our way up.

Are you ready for the lab tomorrow? Don’t forget to print out the lab sheet. And read it! 😉


flickr photo by Pörrö

Chemistry 8-23-12 Scientific Method, Pt. 2

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CHEMISTRY – Great fun with Oobleck today! Were you successful in using the scientific method? Look over your lab sheet carefully tonight as you write your conclusion. The lab sheet is due at the beginning of class tomorrow.

Here’s the notes from today on the rest of the scientific method – very short. BTW – any questions about the SI Scavenger Hunt?

Chemistry 8-22-12 Using the Scientific Method, Pt. 1

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CHEMISTRY – Hey guys, here’s the lecture from Wednesday on the scientific method – well, at least the first part. We’ll finish talking about designing experiments tomorrow.

I know you’ve heard it for umpteen years, but make sure you can APPLY what you’ve learned about the scientific method. You’ll have your chance with Ooblek tomorrow. Make sure you read the Oobleck lab sheet – and be sure and bring it to class!


Image source www.popartuk.com/g/l/lglp1091+68-special-elvi…

Hon Chemistry 8-21-12 Using the Scientific Method

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HON CHEMISTRY – I’m telling you, I really can make gold pennies! Well, maybe not, but how could you use the scientific method to go about testing that?

Did you experience deja vu yesterday? Well, I figure we’ve been talking about tools we will use in chemistry, so why not the scientific method? Here’s the lecture from Monday. Did you have fun with Oobleck today? Is it a solid? liquid? neither? Let’s talk about it tomorrow!

By the way, since today was a short class period and we didn’t have time to talk about the take home lab on Building a Balance, I’m extending that due date to Monday. I have some supplies you can borrow for it if you need them. Fun times! 🙂

Physics 8-17-12 Human Density Lab

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PHYSICS: Great job guys – who knew water displacement could be so much fun! 🙂 Thanks Katie and Will!! Good job moppers, and fillers, and counters, and recorders! Now for the lab report. Remember to include that final question in your conclusion – “So why can or can’t some humans float?” And don’t forget – I’m very, very interested in your experimental design, i. e., how’d you gather your data, how are you presenting your data, sig figs, calculations, etc.

Water, water, everywhere! I’ve posted some pics on Flickr – the link is below. Have a great weekend and Senior Retreat!!

Flickr: Human Density Lab – 2012

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Chemistry 8-17-12 Lab Safety Test

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CHEMISTRY: Great job in lab this week! Wow – you learned a lot!! Don’t forget that the entire Exp A-1 packet (including observations for all of the procedures you did as well as all of the questions on pages 13 – 20) is due Monday, and don’t forget to also finish the new Part 4.

By the way, NOW is the time to study for your test! In addition to the lab safety packet, don’t forget to study all the lab apparatus – know what all the apparatus is used for (including the parts of the balance and the Bunsen burner). I’ll also ask you about safety control equipment and where it’s found in the lab. Also, make sure you can draw and label diagrams for filtering, boiling, evaporating, and heating intensely. As for the skills you’ll need tomorrow, make sure you can measure volume, measure mass, and light a Bunsen burner. Good luck studying! You can do it!! I’ll be praying for you!

We’re going to have a great time in chem lab this year. Click below for a quick review tour of important items and info about the chemistry lab. Have a great weekend!

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