Chemistry 9-30-22 Lab Safety Test Overview

CHEMISTRY: Great job in lab this week! Wow – you’ve learned a lot!! God bless you as you finish up studying for Monday’s test! Be sure and check out the Lab Safety Stuff to Know sheet on the Test Info tab.

Here’s the review that we went over in class. In addition to the lab safety packets and the lab safety video, this is some VERY IMPORTANT information to study

  • All the lab apparatus at your lab station and in the slide show – be able to identify it all and know what all the apparatus is used for.
  • Know the parts of the Bunsen burner and how to light one.
  • Know the parts of the balance and be able to measure mass with a balance AND volume with a graduated cylinder.
  • I’ll ask you about safety control equipment and where it’s found in the lab.
  • I’ll also have the safety symbols and the information they represent on the test
  • Make sure you can both set up or draw and label diagrams for filtering and evaporating

HUGE HINT: Go back and view the earlier posts/slide shows on Lab Apparatus and the review on Canvas, Lab Tour, Lighting a Bunsen burner, Measuring Mass and Volume, etc. All of these are VERY helpful for the test!!

God bless you as you study! It’s a ton of information, but you can do it!! I’ll be praying for you!!


Physics 9-30-22 Angular Projectile Motion

PHYSICS – So we are finally putting it all together – angular projectile motion! Here’s the lesson – some homework discussion and then angular projectile motion.

The number one thing to remember – Never use the resultant velocity to do more than find the vertical and horizontal components! And vertical is vertical, horizontal is horizontal and don’t ever mix the two!

flickr photo by gpwarlow

Physics 9-29-22 Horizontal Projectile Motion

PHYSICS: Great job today – and applying stuff from the last chapter no less!

Just go slow and easy, talk yourself through what you are doing and ask if the formulas you are using are legit. You’ll master it in no time flat. Watch out for squirrels throwing nuts!

Photo by Toimetaja tõlkebüroo on Unsplash

Physics 9-27-22 Relative Motion

PHYSICS – Great discussion of relative motion today! You know, we’ve done most of this already. The only new part is the motion of objects in the same direction and opposite directions, relative to each other.

Don’t forget, you’ll use what you learned about vector addition to work those “boat goes across a river” and “plane experiences a head wind” types of problems.

In case you want them, here are the answers to tonight’s problems.

41. a. 70 m/s east
b. 20 m/s
43. a. 10.1 m/s at 8.53° east of north
b. 48.8 m
44. a. 14.1° north of west
b. 199 km/h
45. 7.5 min
46. a. 23.2° upstream from straight across
b. 8.72 m/s across the river
50. a. 22.2 s
b. 2.00 × 102 s
52. 22.5 s
54. 70. s

flickr photo by raysto

Chemistry 9-27-22 Lighting a Bunsen Burner

CHEMISTRY – Great job lighting Bunsen burners today! By the way, did you happen to see a green flame when you put the copper wire in the flame? The electrons in the copper atoms were being excited and they gave off a green flame. Cool!!

Here’s something you will find useful in the future…everything you wanted to know about a Bunsen burner and how to light it. Be sure and view the slide show BEFORE you take turn in your lab sheets and take the test.

Next week we’ll continue with Parts 4 & 5. Be sure and read ahead before you come to class! Also, make double dog sure you are keeping up with the observations and answering ALL of the questions at the end of the lab on pg. 12- 17. There are a TON of them!!!

Hon Chemistry 9-26-22 Intro to Chemistry

HON CHEMISTRY: So now that you know how to use all the tools we’ll need in chemistry, it’s time to start talking about ….chemistry!!

Were you able to able to make applications with the branches of chemistry and categories of scientific work? We’ll finish talking about the properties of matter tomorrow. Don’t forget the applications!

Now it gets interesting! 🙂

Photo by Louis Reed on Unsplash

Physics 9-26-22 Component Vector Addition – Concept Review

PHYSICS: I do believe you are well on your way to conquering the component method of vector addition. Good job! Pay careful attention to the smallest details – it can make a huge difference.

Here’s the overview of the conceptual questions from the homework – super short!

flickr photo by grewlike