Homework - brainstorm a notation for keeping track of how far an object moves AND in which direction it travels, e.g. a man walks 20 meters eastward, then 20 meters northward, then 10 meters westward; can you write this in a way that the sum of these three motions gives you the man's final position?
discuss briefly the history of modeling motion
differentiate between average and instantaneous speeds and define constant speed
determine if a toy car moves with constant speed
create a scatter plot of the motion of a toy car and discuss the significance of its slope
Homework - read to p. 11 in the booklet (Physics: An Introduction); do the 6 math questions on p. 10
define distance, displacement, speed, velocity and acceleration
"read" position, velocity and acceleration graphs and relate them to one another
draw free-body diagrams and calculate the acceleration of various objects
homework - the formal lab is due Friday, Oct 25Saturday, Oct 26 at 11:59 pm on turnitin.com; try to do these problems, after reading the explanations
practice drawing free-body diagrams and using F=ma; model an Atwood machine and a modified Atwood machine
homework - read Unit 2.2 Forces, in your textbook; complete the Forces SL packet
mini-project - Video yourself asking two individuals (not juniors or seniors in high school) what it means to be weightless and record their responses. Then, in 1 min 30 sec or less, clearly explain what it means to be weightless. Also specifically address any misconceptions offered by the interviewees. Don't say too little; show what you know. Plan what you are going to say before you say it! You do not need to appear in the video throughout, but I should see you at least some and hear you for the entire post-interview section. Props, diagrams and photos can be used, if desired. Upload this video to the linked Google folder by the deadline, 11/6.
analyze a block sliding down a ramp (and hanging signs (in translational equilibrium)?)
discuss Newton's 3rd Law
homework - if you haven't already, read Unit 2.2 Forces; you can find a bunch of review videoshere
test over forces (even if you were absent last class)
the mini-projectis due here by class time today; upload it, don't share it; it will count as a major grade
define kinetic and potential energy and work
homework - read pp. 62-69 in your textbook
derive and use the Work-Kinetic Energy Theorem
calculate change in kinetic energy from a force-vs-position graph (key)
I will be providing feedback on your IA through turnitin. The final IA, including the Evaluation, with corrections made based on my feedback, will be due, through turnitin, on Sunday, March 29March 31st at 11:59 PM. This will be a major grade.
* You should have received an email from me on 3/25 with our plans for this week and next. Your primary goal for now is to complete the IA. Make sure you read the email.