AP Unit 1 - One Dimensional Motion

Tuesday 9/8/20

1. Seating Chart

2. viewed instructional test questions and viewed Rules Powerpoint. .. Test tomorrow. Here is the test with the answers filled in for you to study from last year. There are a couple of changes due to COVID!!

3. discussed AP Syllabus 2021

4 . discuss the nature of the class...overview...full course description

5. students enroll in MasteringPhysics ... here are instructions.

6. join Remind for text reminders ( text 81010 with message @66kdkd7 )

7. discussed Google Classroom if updated

8. students enroll in AP Classroom...here is a tutorial video.

Here is the join code for the mechanics section: DNA4RY

9. students enroll in UT Quest

10. install Graphical Analysis 4 from Chrome Store

11. Recording of today's class

Wednesday 9/9/20

0. Unit 1 Notes

1. Textbook pickup time is 12:15pm

2. students took rules test

3. students downloaded Graphical Analysis 4...we went over a quick tutorial about how to use it

4. students conducted knots lab - to graphically and mathematically model the relationship between the number of knots in a cord and its length:

  • one cord per student

  • used Graphical Analysis app to plot graphs (linear) and find mathematical relationships

5. Class recording

Thursday 9/10/20

1. Unit 1 Notes

2. robot lab : to graphically and mathematically model the relationship between the position and clock reading for a moving kinematics robot

  • collected data for position and clock reading and plotted that data on Graphical Analysis

3. post-lab concepts developed from robot lab:

  • constant velocity motion

  • linear x vs. t graph

  • vertical intercept is initial position...or position at t=0

  • slope is defined to be the velocity

  • velocity is displacement divided by time interval

  • displacement is final position - initial position

  • speed is how far / time interval

  • distance is how far

4. today's recording

Friday 9/11/20

1. Unit 1 Notes

2. brief review of some CV representational tool topics using multiple motions on a single x vs. t graph

3. briefly discussed Practice 1 and Practice 3

4. introduced motion maps (see notes)

5. introduced area under curve of v vs. t graph is displacement!!!

6. asked the following questions:

how do you:

a. find the displacement from an x vs. t graph?

b. find the distance traveled from an x vs. t graph?

c. find the velocity from an x vs. t graph?

d. find the speed from an x vs. t graph?

7. students worked individually on Practice 1, Practice 2, Practice 3, Practice 4, and Practice 5

8. Today's recording

Monday 9/14/20

0. here is today's livestream

1. Unit 1 Notes

2. Kinematic Robots Day 1

3. with any robots lab downtime - students worked on Practice 1, Practice 2, Practice 3, Practice 4, and Practice 5

4. today's recording

Tuesday 9/15/20

0. here is today's livestream

1. Unit 1 Notes

2. discussed solutions to Practice 4, and Practice 5

3. worked through some examples of CV using multiple representations (x vs. t graphs, v vs. t graphs, motion maps, and mathematical models)

4. today's recording

Wednesday 9/16/20

0. today's livestream

1. Unit 1 Notes

2. students helped collect data for two simultaneous experiments running at the same time:

a. tgammtrb position and clock reading for a car on a ramp

b. tgammtrb instantaneous velocity and clock reading for a car on a ramp

3. students used their chromebooks to plot data sets for above experiments.

4. The x vs. t graph came out as predicted...top opening.

5. The v vs. t graph came out linear.

6. discussed the answers to the questions: for the v vs. t graph, what does the vertical intercept mean (initial velocity) and what does the slope mean (acceleration)

7. discussed what the area of the v vs. t graph means (still displacement)

8. students determined different mathematical relationships for finding the displacement from a linear v vs. t graph:

  • rectangle+triangle

  • trapezoid

  • big rectangle - non-shaded triangle

9. discussed via algebraic manipulations how each equation was equal to the others

10. listed the most common CA equations

4. today's recording

Thursday 9/17/20

0. today's livestream

1. Unit 1 Notes

2. discussed via algebraic manipulations how each equation was equal to the others

3. listed the most common CA equations after deriving them from equations generated by v vs. t graph as well as definition of acceleration

4. discussed motion maps for accelerated motions (included other representations as well)

5. worked through kinematic stacks through set with given x vs. t graphs

6. handed out practice 6 and asked students to graph x vs. t graph and draw secant lines

7. went over calculus hw #1 on limits

4. today's recording

Friday 9/18/20

0. today's livestream

1. Unit 1 Notes

2. finished kinematic stacks

3. discussed the solutions to Practice 6 and did an additional example showing that the slope of the secant lines over time intervals is equal to the slope of the tangent line smack dab in the middle of that time interval

4. showed how one could make an x vs. t graph if given a v vs. t graph (find displacements over time intervals and create x vs. t data table and graph

5. reviewed constant velocity model and constant acceleration model

6. began summary of using all representational tools (x vs. t graph, v vs. t graph, a vs. t graph, and motion map) for describing the following motions: a. speeding up in the positive direction

b. slowing down in the positive direction

c. speeding up in the negative direction

d. slowing down in the negative direction

7. discussed the limiting process to go from an average velocity to an instantaneous velocity

8. discussed the definition of derivative w.r.t. velocity being the derivative of the position function

9. students received calculus hw #2 on derivatives after going over Calculus Reading and Assignment #2 (the derivative) ... students worked 1st page

10. Quiz 1

11. Students signed up for Pivot Interactives and conducted the following activities:

a. Ping Pong Ball Bazooka

b. Free Fall Five

Today's recording

Monday 9/21/20

0. today's livestream

1. Unit 1 Notes

2. finished summary of using all representational tools (x vs. t graph, v vs. t graph, a vs. t graph, and motion map) for describing the following motions:

a. speeding up in the positive direction

b. slowing down in the positive direction

c. speeding up in the negative direction

d. slowing down in the negative direction

3. discussed the limiting process to go from an average velocity to an instantaneous velocity

4. discussed the definition of derivative w.r.t. velocity being the derivative of the position function

5. watched this excellent video on using Desmos to learn the derivative

6. students received calculus hw #2 on derivatives after going over Calculus Reading and Assignment #2 (the derivative) ... students worked 1st page classwork...students worked on 2nd page for homework (shortcut rules are in notes)

7. looked at several data sets and asked if motion was constant acceleration

8. worked several non-constant acceleration problems using the concept of the derivative

9. discussed the acceleration due to gravity (free fall) by discussing graphs from this past weekend's Pivot Free Fall activity...consensus was that the acceleration due to gravity was constant and equal to 9.8 m/s/s downward

10. introduced goal-less problems

Today's recording

Tuesday 9/22/20

0. today's livestream

1. Unit 1 Notes

2. referenced this excellent video on using Desmos to learn the derivative

3. discussed results of Pivot Dry Ice Puck on Ramp lab.

4. discussed solutions to 1st page of Calculus Assignment #2

6. students received calculus hw #2 on derivatives after going over Calculus Reading and Assignment #2 (the derivative) ... students worked 2nd page as classwork. (shortcut rules are in notes)

7. looked at several data sets and asked if motion was constant acceleration

8. worked several non-constant acceleration problems using the concept of the derivative

9. handed out practice 7 and practice 8

10. worked additional goal-less problems

11. discussed MasteringPhysics assignment due tomorrow night at 11:59pm

Today's recording

Wednesday 9/23/20

0. livestream

1. Unit 1 Notes

  1. discussed additional non-constant acceleration problems

  2. discussed answers to page 3 of calculus hw #2 on derivatives here Calculus Reading and Assignment #2 (the derivative)

  3. discussed solutions to practice 7 and practice 8 (except for Object B)

  4. discussed the antiderivative ( here is reference packet )

  5. discussed how the antiderivative of acceleration is velocity and the antiderivative of velocity is position

Today's recording

Thursday 9/24/20

livestream

0. Unit 1 Notes

  1. worked Calculus #3 hw together in class and had further discussions of the antiderivative...also discussed rules for antiderivative...also differentiated between indefinite and definite integrals...discussed meaning of antiderivative (or integral) which is area bounded by function and horizontal axis

  2. discussed additional non-constant acceleration problems requiring the antiderivative

  3. continued working goal-less problems

Today's recording

Friday 9/24/20

livestream

0. Unit 1 Notes

  1. discussed additional non-constant acceleration problem requiring the antiderivative

  2. continued working goal-less problems

  3. discussed solution to Object B from practice 8

  4. discussed the next two MasteringPhysics assignments due Sunday and Tuesday respectively

  5. worked several additional multi-object problems

Today's recording

Monday 9/28/20

livestream

0. Unit 1 Notes

  1. discussed an additional non-constant acceleration problem requiring the antiderivative and the derivative

  2. continued working goal-less problems

Today's recording

Tuesday 9/29/20

livestream

0. Unit 1 Notes

  1. discussed a CA problem with a sled moving down a hill...interesting problem because given information is unusual

  2. students worked through some clicker questions (full file here)

  3. discussed problems 1 and 4 from cooperative questions

  4. discussed questions from MIT

Today's recording

Wednesday 9/30/20

livestream

0. Unit 1 Notes

  1. students took quiz on calculus of kinematics

  2. discussed questions from MIT and other sources for difficult problems

Today's recording

Thursday 10/1/20

livestream

0. Unit 1 Notes

  1. discussed solutions to quiz on calculus of kinematics

  2. students worked through some clicker questions (full file here)

  3. discussed questions from MIT and other sources for difficult problems

Today's recording not available

Friday 10/2/20

livestream

0. Unit 1 Notes

  1. quiz 1 and quiz 2 retakes

  2. students worked through some clicker questions (full file here)

  3. discussed questions from MIT and other sources for difficult problems

  4. began Unit 2 material...go to Unit 2 from the pull down menu to see what we did.

Today's recording