PHYSICS: Who knew snow skiing could be so complicated! Well friction problems on an incline anyway. Here’s the lecture/problem review from Monday on friction problems on an incline. Remember, drawing the diagram is super, super important. Label all the forces, and apply the concepts you know about net forces and resultant forces. And practice!! flickr [...]

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 [...]

Happy Snow Day! Well, since we have missed some valuable time in physics, I’ve decided to cheat a little, I mean fudge a little on some topics that I wanted you to research for yourself, and instead give you some background info for a couple of problems on the Circular Motion II worksheet. Click here [...]

PHYSICS: I’m really proud of you – you’re doing a great job on thinking through these problems! Good luck in studying for your test. Practice, practice practice the problems, but don’t forget the conceptual stuff. How did I shoot those eggs across the room with the broom – but not!? How’d Preston throw the egg [...]

PHYSICS: How are you doing with studying for the test? Seems like forever since we started this chapter, so do you need a rundown of the problems? And don’t forget Newton’s laws and all the conceptual stuff! If you get a chance, watch the Julius Sumner Miller videos on Newton’s laws in the Vodpod, or [...]

PHYSICS: Girl on a sled coasts down a hill… Here’s the thing. You can watch me 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. [...]

PHYSICS: Who knew snow skiing could be so complicated! Well friction problems on an incline anyway. Here’s the lecture/problem review from Thursday on friction problems with the applied force at an angle, and friction problems on an incline – but not. Turns out somebody forgot to turn on the mic, so no audio (sorry!), so, [...]

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 [...]

PHYSICS: Well, the more I thought about it, the more realized it just wouldn’t be a good idea to have the test either Monday or Tuesday. I hate to move it to after Thanksgiving, but I think it would be best. We’ll finish correcting the chapter 4 problems and finish the lab on Monday, practice [...]

PHYSICS: Here’s one last review of the conservation of energy and work-energy theorem problems. We did the Tarzan problem and a few sliding up and down inclines (the problems, I mean, not us!) – #40, 41, 46, 48, I think. Good job on them! We’ll do power on Monday. Have a great weekend! flickr photo [...]