Friday, October 25, 2013

Newton's 3rd and Momentum

Wednesday we had notes and discussion / demonstrations about Newton's 3rd law and momentum conservation.  Thursday we had a quiz (except 4th - they will quiz on Monday).
I will post a copy of the notes online on Monday; I forgot to do so Wednesday.

HMWK due Monday; Read p.113-117, p. 117#1-6

Friction labs are due Tuesday.

The exam I had planned for Tuesday is now rescheduled for next Monday (after Halloween)... sorry to move back so much but that will allow more appropriate presentation of force - topics, review, and for you to not have 3+ exams in one week.

Monday we'll see answers on homework that was turned in last week, discuss what coefficient of friction means (for your post-lab), practice application of Newton's 3rd AND momentum, and maybe go over the answers to p. 117's problems.  I will post the answers to the worksheet with the paragraph at the top and the practice questions on bottom/back on the webpage so you can check your work.

Tuesday we'll hopefully try a demonstration involving Newton's 2nd law... hopefully it will work - and practice problems that are all - encompassing involving force, mass, acceleration... and relating it back to what you should know about velocity and position.

Wednesday we'll watch some videos of car crashes, look at test data, and discuss how momentum = m*v and F*t relate to what you experience in a situation where you're accelerated.  We will send some kids into the hall to move with a sensor on them and then try to assess from the graph what they did.

Friday I hope to have the mobile computer lab; we will do graph matching with roller coasters and maybe have time to start on some optional assignments; I will put another one up this week - only three people have completed the Forces in 1 Dimension one so far... you can still do it for points through this week!

No comments:

Post a Comment