Honors Chemistry 10-31-13 Chapter 7 Test Review

HONORS CHEMISTRY: Do you feel like you are starting to go a little crazy? Lots and lots to be responsible for in this chapter, huh? God bless you as you study for the test! Since I forgot to turn on the mic(!), here’s an overview of the test that we did last year – I thought you might find it helpful. Also, did you find the Chapter 7 Stuff to Know sheet on Edline? Click here on the name, if you need one. I know it seems like a lot, but you can do it! (BTW – I changed my mind and decided that you don’t have to know diatomic molecules for the test, just for the future.)

First priority – make sure that you have memorized EVERYTHING. Then, go to sciencegeek.net 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 sciencegeek.net. That’s always some good practice. God bless – I’ll be praying for you! You can do it!!

HON CHEMISTRY 10-31-13 Chapter 7 Test Overview from Tammy Skinner on Vimeo.

flickr photo by libraryman

Physics 10-31-13 Friction & Normal Force

PHYSICS: So why don’t things that are moving just keep moving? Here’s the intro lecture on friction.

Remember a few key things. Net forces produce acceleration. You can find Ff a couple of different ways – it’ll be part of a net force equation and can be found from the coefficient of friction equation. If and ONLY if your object is moving at a constant velocity, Ff will equal Fa. Fn is only sometimes equal to Fw. If your object is pulled at any angle (or pushed), Fn will be a part of Fnet in the vertical direction.


Physics 10-31-13 Friction & Normal Force from Tammy Skinner on Vimeo.

flickr photo by kbaird