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!! :)

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!
  • The info for setting up your 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!

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

flickr photo by Pörrö

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!


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

Physics – Human Density Lab

PHYSICS: Just another day in the life of a physics student! Who knew water displacement could be so much fun! :) Thanks Mary Katherine and Alex!! 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.

Speaking of labs – I’mooking forward to hearing and seeing your ideas for predicting the height of the bouncing ball!

Water, water, everywhere! I’ve posted some pics on Flickr – the link is below.

Physics 2015 - 2016

Web Post Comments Ideas

Happy Friday! Are you having a difficult time understanding what a good web post comment is? In the future, you will probably be taking online classes where you will have to be part of online class discussion groups, and you’ll be graded on your comments and how you participate.

Here is a plan that will help you! Your goal is to have STAR Web Post Comments. Hokey title, but maybe it will stick! Click here on the STAR Web Post Comments Idea Sheet for ideas for good comments that will receive credit.

IMPORTANT: Make double dog sure you write your name in your web post the correct way. If your name/heading is not written correctly, you will not receive any credit for making the web post.

Still don’t know what to do?

  1. Click on the title of any web post from the week that I have made for your class.
  2. Scroll to the very bottom of it where it says “Leave a Reply” – you may have to scroll past comments from other people, but you can reply to those also!
  3. Enter your name correctly and your email.
  4. Type in your comment (see the info above.)
  5. Type in the Anti Spam characters in the space provided.
  6. Click Post Comment and you are done!

Hope you have a great weekend!!

Physics 8-20-15 Chapter 1 Test Overview & Problems

PHYSICS: God bless you as you prepare for your first physics test! Here is the info that we discussed about the test today as well as an overview of some of the problems.

Remember that memorization is very important, but even more important is applying what you’ve memorized – for example, SI system, branches of physics, etc.

Be sure and practice the problems!! Have questions? Watch the vodcasts of the lessons from this chapter or send me a txt or comment below and help each other out! I’ll be praying for you!!

PHYSICS 8-20-15 Chapter 1 Test Overview & Problems from Tammy Skinner on Vimeo.

Image source