Physics 8-31-15 Velocity Problems 2

PHYSICS: Great job thinking through the problems today! What about the tortoise and the hare? Think it’s possible now? Don’t forget the hints I posted in Friday’s class post!

Remember a few things: You weren’t born knowing how to do these – give yourself a little time. One the really good ones, just one formula won’t work – begin with writing what your know. These are some of the hardest problems we’ll work in physics – not because the formulas are hard, but because knowing how to reason through them is so challenging.

You are doing a great job! Some good advice – go work them again! I promise, it will be good for you. Remember, don’t open the solutions you wrote in your notes! Try them without it!! If you have to, peek, but then don’t stop until you can work the entire problem through without looking!

Physics 8-31-15 Velocity Problems 2 from Tammy Skinner on Vimeo.

Image source http://www.sweetpreserve.com/2007/10/unusual-cars-photos.html

Chemistry 8-31-15 Significant Figures, Pt. 2 & Scientific Notation

CHEMISTRY – I like the way you are catching on to significant figures! Here are the last of the notes on calculating with Sig Figs!

And great job with scientific notation today! Did you realize your calculator was so smart? Have you conquered it yet?
Remember, the best way to really learn all of the things from this chapter is practice, practice, practice! That’s the reason it’s so important to do your homework! I give it to you so you can practice and put together all we talked about in class ….cuz I love you! ๐Ÿ™‚

HW UPDATE: The homework on the syllabus will be due Wednesday in class. Go ahead and print and read the lab for tomorrow.

Also super important – make sure you are actively studying for the SI quiz!

Chemistry 8-31-15 Significant Figures, Pt. 2 & Scientific Notation from Tammy Skinner on Vimeo.

Student Email Information

It’s time for us to set up your Evernote accounts. Please enter your email here so that I can share your lab report folder with you. If you already have an Evernote account be sure and type in the email you used to set up your account.

Evernote is a great tool for you to consider using in class! In addition to other ways, we’ll use it as a portfolio for all your graded labs.

Physics 8-28-15 Velocity Problems

PHYSICS – Here are the velocity problems from Friday. You did a great job on these! Do you see what I mean about learning to think through them? Do you think you can tackle #11 now?

Stay strong on those next five problems! Make sure to do more than just show the math – be sure that I can also follow your logic in the formulas. Ditto with units, etc.

Don’t give up on the tortoise and the hare. A couple of hints: remember the problems we did in class today – it’s kind of like those. The distance the tortoise travels is the same as the distance the hare travels plus the extra 20 cm he was ahead. Also, the time the hare raced is equal to the time of the tortoise minus those two minutes he rested.

We’ll work through them in class if you need some help, but FIRST, make sure you have already worked them yourself – even if you think your work is wrong!

Now go have fun! And have a great weekend!! ๐Ÿ™‚

Physics 8-28-15 Velocity Problems from Tammy Skinner on Vimeo.

flickr photo by darkmatter

Chemistry 8-28-15 Accuracy and Precision & Intro to Significant Figures

CHEMISTRY – So which is more important, accuracy or precision? Great discussion on causes of error in the lab and how to prevent them!

So you’ve been using been using significant figures all along when you were measuring in the lab! Now the other half – using them in calculations will be no big deal at all!

Speaking of this weekend – how’s the thLab going? Be sure and read the post below this one on . Be sure and give yourself plenty of time!!

And in the middle of all of this lab stuff – don’t forget to be studying for the SI quiz!!

Chemistry 8-28-15 Accuracy and Precision & Intro to Significant Figures from Tammy Skinner on Vimeo.

flickr photo by jambe

thLAB: Building Your Balance

CHEMISTRY: Pretty cool, huh?!? Do you understand now how a balance works?

A couple of IMPORTANT things about doing and writing up thLABs:

  • Yes – you ALWAYS do all the questions on labs.
  • Always to the extension on thLABs if there is one, but if you are not sure, ASK!
  • The actual masses of the coins can be found on the Internet. Google it!!
  • Yes, you find your percent error on each coin – make sure you show your work with formula and units!!
  • Be sure and give yourself plenty of time to upload to the Google Drive Assignment Turn-In folder and Turnitin.com!
  • The info for setting up your turnitin.com account is on the first day Tech Overview sheet – it’s under the worksheet tab. That sheet will give you the password and show you where to find the other instruction.

Holler if you have any other questions. Have fun with your lab!!
Balance 2
Image source: Alex Dean

Chemistry 8-27-15 SI Measurements

CHEMISTRY – Hey guys, so is all the info on SI measurements starting to come back to you? Here’s the lecture from Thursday. 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!

Did you remember the prefixes? Start work on memorizing them NOW – Si quantities, units, and SI prefixes. For the prefixes, also make sure that you can tell me how many of something in the larger one. (That’s what I explained in class.) The quiz on them will be next Wednesday, Sept. 2.

Chemistry 8-27-15 SI Measurements from Tammy Skinner on Vimeo.

flickr photo by Nils Geylen

Physics 8-27-15 Motion and Displacement

PHYSICS – What “moving” lessons yesterday and today! Get it? “Moving”? Okay, okay, I’ll stop.

You did a great job with your own “intro to motion” yesterday – great job and great beginning to kinematics today! Let’s crank it up on the problems tomorrow!
๐Ÿ˜‰

Physics 8-27-15 Motion and Displacement from Tammy Skinner on Vimeo.

flickr photo by Pรถrrรถ

Chemistry 8-26-15 Scientific Method, Pt. 2

CHEMISTRY – Great fun with Oobleck today! Were you successful in using the scientific method?

Have you double checked Edline to make sure that you are good with all the Tech 101 and Lab Safety assignments you are supposed to have turned in? if you had to back and make any changes, MAKE SURE that you text me or email me to let me know that you have updated your files. Otherwise I won’t know you’ve changed anything. Come and talk with me if you have questions!

Oobleck

Chemistry 8-25-15 Using the Scientific Method

CHEMISTRY – Hey guys, here’s our discussion from today on the scientific method. I know you’ve heard it for umpteen years, but it is super important that you can APPLY what you’ve learned about the scientific method.

Speaking of that, you’ll have a great chance to practice using the scientific method tomorrow with Ooblek! Make sure you print and read the Oobleck lab sheet and bring it to class tomorrow!

Speaking of homework – the work from the textbook can be done with the online textbook. Do it on notebook paper, and you can use the back. Just make sure you number going down and not across, and skip a line between each question. Be sure and turn it in at the beginning of class tomorrow.

CHEMISTRY 8-25-15 Using the Scientific Method from Tammy Skinner on Vimeo.

Flickr photo by UK Ministry of Defense, Photographer: Harland Quarrington