FrictionNotes,Review for Friday Exam

Friction Notes here

Review activity 1
Answers here

Review activity 2  (see answers from Freeman in class)

HMWK due tomorrow:  Read p. 104-111, p. 111#1-8, p. 117#2,3,6
Remember, the optional assignment posted last week is due on Friday!

New Optional Assign, Labs due Wed.

New optional assignment - relating forces and acceleration
https://docs.google.com/document/d/1m8lELfvP4wkGvWnWX1vAQ1kCcUs4C2ZNVd0jKHpl53s/edit
Due Friday, Nov. 2nd, Midnight

Today in class, groups had some time to finish labs/collaborate and share data.  We went over answers from last week's big problem set (p.880) and started to discuss momentum in some classes.
Tomorrow we'll have official notes on Momentum: Inertia in Motion!  and an egg-stravagant demonstration.

Friction Labs from Friday are due this Wednesday, the 24th.  Scoring guides will be handed out in class Tuesday, and look like:

Inquiry Into Friction  Lab Scoring Guide                                                                  Points: Allowed / You

Question, reasoning, hypothesis, IV/DV Control                                                                  5

Procedure that can obtain quantitative results                                                                       3

Lab completed properly; data table showing units and measurements neatly                         1

Numbers in data table make sense; sensor or scales used properly                                      1

Safety hazards/concerns                                                                                                     2

Observations shown / experiment performed                                                                      2

Graph – complete, title, units, labels, correct type, large enough size                                     5

Data analysis/ conclusions: results, hypothesis, application, reliability                                     5

Post-Lab Calculations   showing work and units, correct answers                                      . 3 .  .      .

                                                                                                                        Total          27

Answers to practice WS

Answers to today's practice WS (showing work) to help you on your homework due tomorrow:
https://docs.google.com/document/d/1mA1GXHw-FZMuIiFIxeCjpHYbbTPvRwur_mrz2ia_044/edit

Lab for Friday (will be handed out Thurs)
https://docs.google.com/document/d/1Y5V3DH-uo5vEe7TOmRnVbZvIVyybcWuM4fM2urz4ymY/edit

HMWK due Thurs, Notes

Due Thursday:
P. 880#28,29, 33-39, 42-44

Notes from this week

Tomorrow (Wed) we'll practice picking out variables from word problems and also picking out equations to use in various situations.  We'll plan to have a lab this Friday also, on Friction!

Notes from Wed, Bonus problem at end

https://docs.google.com/presentation/d/1WLi1zHNm2F0K3TOv4JJsFb2gJbEYxoJDHso-GIHqwqc/edit

HMWK for Friday - Inertia and Forces!

Today's quiz was rough (at least much rougher than folks reported to me verbally).  Results will go online this evening and be shown in class tomorrow.
We also successfully shot Millie the Monkey in most classes today, verifying that gravity doesn't care how fast something is moving horizontally.

HMWK for Friday:
READ:  p. 81-86, 98-103   and work problems; p. 86#1-7, 103#2-7
It is important that you do the reading as well as work on the problems if you're to understand the things we do/discuss in class.

HMWK for Monday, Accel. practice

Today in class:
Homework (p.80) was turned in, graded, and discussed.  (hopefully you made corrections to study!)
Labs were turned in (the rest get a 1-day extension and time to look over the scoring guide - I didn't get to you yesterday)
Classes worked on an acceleration practice WS (see yesterday's post for a copy)

Homework (Due Monday)  p.92#5,11-15,22-26  AND p. 94#1,3,7-9,11

Tomorrow we'll discuss acceleration due to gravity (you had some previews on your homework and today's worksheet) and I will go over solutions to the practice WS you received today if we have time - if not, on Friday... A couple of classes that have not been outside yet may get to take a field trip tomorrow if the weather is nice.

Labs, HMWK due WED

Today classes saw their exam scores and looked over one part of the exam from Friday.  We had notes: using acceleration in equations - we used two equations:  one basically defining acceleration: a = delta v / t

and another using the equation of the position - time^2 graph:  delta x = 1/2*a*t^2

We used these in some easy scenarios to calculate acceleration and also to find displacement of an accelerating object.

LABS due WEDNESDAY - be sure to answer all parts of it!!!!!
HMWK due WED:  Read p. 76-80, and work p. 80# 1-7 (skip #3)

Scoring guide for lab here

Lab instruction sheet here

Wednesday's WS here