Physics 12-8-20 Ch 5 Review WS 2 Answers & a Preview

PHYSICS: Now this is a lot of grocery carts! Here’s an old look at #18 and #19 from the Chapter 5 Worksheet 2. Would have been helpful, I think, if they had told you at it was at constant velocity.

Help session tomorrow morning at 7:30ish – not 3:30ish (!!!) A.M. God bless you as you continue to prepare for the test! I’m praying for you!!!


PHYSICS 12-4-14 Chapter 5 Review Worksheet 2 from Tammy Skinner on Vimeo.
flickr photo by mischiru

Physics 12-4-20 Power & the Horsepower Lab

PHYSICS: Great job on the horsepower lab. Not so much noise this time! I’m thinking maybe you don’t have as many physics phrustrations to work out?!? 🙂

So how many horsepower do you have? You found Watts? So how many horsepower is that? Hmmmm…..

Here’s the super short lecture from today on power – beginning with #46 from last night’s homework. Now go forth and conquer the power problems!

Need answers? Here are the Chapter 5 Review Worksheet 2 Answers:
3.) 1090 J
4.) 1350 J
5.) 79%
6.) 917 W
8.) 9.57 kW
12.) 420 N
14.) 1300 J
18a.) -125 N
18b.) -2190 J
18c.) 0.360
19.) 4380 J


flickr photo by Thomas Hawk

Physics 11-19-20 The Work Energy Theorem & Conservation of Energy

PHYSICS: See?! I wasn’t kidding about the balancing rocks movement!

Great job today on making connections between work and energy! I think you’ll like using the work-energy theorem, it’ll save you some time and a couple of steps. Don’t forget about friction!


Photo by Deniz Altindas on Unsplash

Physics 11-18-20 Work & Energy

PHYSICS: Funny thing about words, all this work you thought you’d been doing, was it work after all?

Great job today on making connections between work and energy! I think you’ll like using the work-energy theorem, it’ll save you some time and a couple of steps. Don’t forget about friction!

Physics 11-17-16 Work & Energy from Tammy Skinner on Vimeo.

flickr photo by *hb19

Physics 11-13-20 A Look Back at Chapter 4 Concepts & Help Session

PHYSICS: Leaves gracefully falling – can you apply concepts from this chapter to explain? Practice, practice practice the problems, but don’t forget the conceptual stuff! Here’s a short look (from last year) at some additional concepts and below that the help session from yesterday morning.

How do parachutes work? What causes whiplash and how do seat belts work? If you get a chance, watch the Julius Sumner Miller videos on Newton’s 2nd law and 3rd law on You Tube. And also, here’s the link to the video clip I showed you on terminal velocity and the Physics of Skydiving I think they’ll all help a lot with the conceptual information


Photo by Sandis Helvigs on Unsplash

Thursday Morning Help Session

PHYSICS 11-11-20 Vertical Fish Forces & Forces with Pulleys and Friction

PHYSICS: Not sure if you’d ever find a fish on an elevator, but you sure could treat the problem like it was! Here a look at the fish on a line problem, and then, a different take on forces – an application of horizontal forces, vertical forces, friction, all at once!

Wow! Amazing job solving these problems – can you now go see if you can solve them by yourself?

Help session tomorrow, 7:30h A.M.


flickr photo by Elisa Dudnikova