PHYSICS: Happy Friday! Here’s the lecture from Friday on simple machines. We’ll add this little bit of chapter 7 to the chapter 5 test. At the very beginning of the vodcast, I say something completely wrong, and although we correct it later, let me do so again here. The two categories of simple machines are inclined planes and levers. Got it? Sorry about that!
I don’t think you’ll have any trouble with efficiency and mechanical advantage problems. How do you think the efficiencies of machines compare? Could you design a method to test that? Lab Monday and test Wednesday. Have a great weekend! 
How do you classify a machine that requires no input force?
Cory – what kind of machine is would that be?
A gas powered machine? Although it has Chemical potential is it still classified the same way as simple and compound machines?
Hopefully we don;t have science in the news this week!!
Ms.Skinner~
Will this test go on next nine weeks?
Courtney – It will go on THIS nine-weeks.
Thank you for the help session after school. I’m feeling a lot more confident about this test after that review.
Will everyone have to have the Machines & Efficiency lab written up? Only 6 of us attempted it in class Monday.
Megan – You’re all going to finish the lab on Thursday.
Ms. Skinner,
The lab is tomorrow?
Sebastian – Yes, simple machines.
Physics
I had forgotten how long lab write ups take. Do we have science in the news due this week?
Zach – Not regular SItN, just extra credit.
Are there any old vodcasts that we could watch to review for the exam? Or do we just need to go back over the tests?
Cory – Absolutely! They’re all here and would great for review – especially the stuff you might be fuzzy on.