Physics 12-7-16 Chapter 5 Review Worksheet 2

PHYSICS – Now this is a lot of grocery carts! I’m not going to even think about how much work would be done in moving them!

No audio on today’s recording! So, here’s the vodcast of the work we did a couple of years ago on the problems and questions from the Chapter 5 Worksheet 2. It doesn’t have all the problems we did in class today, so below that I’ll post the vodcast from today in case you want to just see what we did – remember on that one, no audio!

Help session tomorrow morning at 7:20ish A.M. God bless you as you continue to prepare for the test! I’m praying for you!!!

PHYSICS 12-4-14 Chapter 5 Review Worksheet 2 from Tammy Skinner on Vimeo.

flickr photo by mischiru

and from today’s class…

Physics 12-7-16 Chapter 5 Review Worksheet 2 (No Audio) from Tammy Skinner on Vimeo.

Hon Chemistry 12-7-16 Isotopes, Nuclear Reactors, and Fusion

HON CHEMISTRY: Wow! What do you think about fusion? Can you now begin to understand the destructive force of the hydrogen bomb? Just another reason you might not want to plan a trip to the sun!

We put the final touch on a lot today, and guess what? We’ve wrapped up the chapter! How are you doing on studying for the test? It will cover the beginning part of chapter 3 (through average atomic mass), chapter 21, and you will most probably also have a set of chemical formulas to write and name.

Below the vodcast from today’s class, I’ve put the help session from this morning. Practice everything! And did I mention, PRACTICE!! I’ll be praying for you!

Hon Chemistry 12-7-16 Isotopes, Nuclear Reactors, and Fusion from Tammy Skinner on Vimeo.

And from this morning’s help session…

December07 0812 hc1 HS 2016 from Tammy Skinner on Vimeo.

Physics 12-6-16 Ch 5 Review Worksheet 2 Answers

PHYSICS: Did you have a good day today reviewing work, energy, machines, etc.? I wish I could have been there to watch you! Here are the answers to the Review Worksheet 2. Most were worked with g as 9.80 m/s2. Also, I think #19 must be at constant velocity.

3) 1090 J
4) 1350 J
5) 79%
6) 917 W
8) 9.57 kW
12) 420 N
14) 1300 J
18a) -125 N
18b) -2190 N
18c) 0.360
19) 4390 J (assume cart is moving at constant velocity)

Hon Chemistry 12-6-16 Applications of Radioactivity

HON CHEMISTRY: Radioactive isotopes all around! Did you ever dream there were so many applications of radioactivity? This is a pic of a test used to check on blood flow through the heart during a stress test. Fun, huh!?

So what’s this about you probably having an radioactive isotope in your house?!? Don’t forget to research how smoke detectors, especially those with Americium, work!

Hon Chemistry 11-23-15 Applications of Radioactivity from Tammy Skinner on Vimeo.

Photo by Steve Jabo, NMNH.

Chemistry 12-5-16 Chapter 7 Test Overview

CHEMISTRY: God bless you as you study! Here’s our overview of the test from today. Also, did you find the Chapter 7 Stuff to Know sheet on Edline? Be sure and use it to guide your studying. I know it seems like a lot, but you can do it!

First priority – make sure that you have memorized EVERYTHING. Then, practice!!! Go to and make sure you can write and name chemical formulas. Practice, practice, practice!!! Then start practicing the different kinds of problems – do at least three of each one of them. And also try those on That’s always some good practice. I’ll be praying for you! You can do it!!

Chemistry 12-5-16 Chapter 7 Test Overview from Tammy Skinner on Vimeo.

flickr photo by libraryman

Hon Chemistry 12-5-16 Artificial Transmutations, Fission & Half Life Practice

HON CHEMISTRY: Wow! We made artificial elements! Well, on paper at least 😉

So you can take something that’s not radioactive and make it radioactive? Here’s the lecture from Monday. We’ll finish fission and talk about fusion on Wednesday!

Hon Chemistry 12-5-16 Artificial Transmutations, Fission & Half Life Practice from Tammy Skinner on Vimeo.

flickr photo by Serpa Júnior

Chemistry 12-2-16 Assignment for Friday – Science In the News

To My Beautiful Chemistry Students: I miss you today! Here is the assignment for Friday:

How can chemistry – or science, technology, engineering, and mathematics be important to your everyday life? TONS of ways, and this year we’ll be using Science In the News to research just that!

IMPORTANT guidelines for the assignment:

  • Find your article on the website
  • Make sure you pick an article you find interesting and that you understand!!
  • Make sure you pick an article that you can use to answer the questions on the Science In the News sheet. If there are questions you cannot answer with the type of article you have – pick another article!!!
  • The SItN assignment must be handwritten on notebook paper – you may write on the back

IMPORTANT #2: When you are finished today, put your laptop up in the correct slot and plug it in!!

Hon Chemistry 12-2-16 Half-Life

HON CHEMISTRY: So what do you figure is the half-life of a banana? But I digress…. Here’s the lecture for Friday on half-life problems. Keep thinking these problems through – listen to the story they’re trying to tell you, and you’ll do great.

Have fun with the half-life simulation lab! Be sure and post your data in the Half Life Lab web post by the time listed on the syllabus. Don’t forget to include pics and your graph! The lab report is to be submitted as a PDF 2X by the due date listed on the syllabus. :)

Hon Chemistry 11-22-13 Half-Life from Tammy Skinner on Vimeo.

flickr photo by Caro Wallis

Hon Chemistry Half-Life Simulation Lab

HON CHEMISTRY: Hey guys – this is where honors chemistry will post results for the Half-Life Simulation lab. You’ll just list your data from the first data table as a comment – just like you comment every week, except this time you are just listing the data from the first data table.

Remember, you don’t have to use candies; you may use coins or anything else that has two sides. Please note that you are to post the number of “radioactive” nuclides remaining after each toss.

Just to clarify, everything on the lab sheets will go in your lab report on that you will submit as a PDF to Google Drive and – Title, Objective, Procedure, Observations (with data table), Conclusion, and Questions. Don’t forget that your graph needs to be either a full page graph that you do on Excel or a similar program, or you can draw a full page graph on graph paper, scan a very clean, sharp copy and copy it into your lab report. And don’t forget that the analysis questions, calculations, graph, etc., go after your conclusion.

Happy counting – and wait until AFTER the lab to snack!! :)

flickr photo by Jared Browarnik

Hon Chemistry 12-1-16 Properties of Radioactive Isotopes & Radioactive Decay

HON CHEMISTRY: Can you guess what it is?/ It’s a picture of uranium ore under UV light. Cool, huh! Here’s the lecture for Thursday on the properties of radioactive nuclides and the types of radioactive decay.

This lesson includes info on how to write nuclear equations. Don’t forget to memorize the nuclear symbols for alpha particles, beta particles (electrons), positrons, neutrons, and protons. Not nearly as bad as polyatomic ions, huh?!?

Great start on half-life problems today! I love the way you were able to figure them out yourselves!! Let’s play with them some more tomorrow! Calculators ready!!

HON CHEMISTRY 11-21-13 Properties of Radioactive Nuclides & Nuclear Equations from Tammy Skinner on Vimeo.