Physics 11-4-16 Friction & Forces on an Incline Problems Review

PHYSICS: Girl on a sled coasts down a hill, box is pushed up a hill… Is it starting to make a little more sense? Especially after the awesome guest lecturers we had today? Thanks Hannah and Patrick for your help with #40!!

I thought a look at a couple other problems might be helpful, so below today’s vodcast of #40 and 36, I put a vodcast from last year with problems #46 and 48.

Here’s the thing. You can watch me or someone else do a thousand problems (okay, maybe not a thousand – but a lot!), and it won’t help. That’s what today was about. I don’t want you to copy what I do, I want you copy why I’m doing it. Make sense? You’re getting it…keep sledding and watch out for net forces!

Physics 11-4-16 Friction & Forces on an Incline Problems Review from Tammy Skinner on Vimeo.

flick photo by Eva the Weaver

PHYSICS 11-10-14 Friction & Forces on an Incline Problems Review from Tammy Skinner on Vimeo.

flickr photo by darkmatter

Hon Chemistry 11-4-16 Percent Composition

HON CHEMISTRY: Great job today… although, it was really weird watching you chew gum in class! Don’t forget to continue to think like a scientist as you write up your lab report (data table, calculations, units, sig figs, etc.)! Also, be sure to include as part of your conclusion reasons for any error you might have had or why you didn’t have any at all.

I think you’ll find that percent composition problems are super easy to catch on to. Make sure, though, you can write chemical formulas (I won’t give them to you!) and that you’ve memorized the formulas for acids and those common substances from #58. It’s just plug and play from there! 🙂

Hon Chemistry 10-27-15 Percent Composition from Tammy Skinner on Vimeo.

flickr photo by Τϊζζ¥