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