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IB Physics SL (2019-2020)

**8/15**

- Informational Packet /
__Syllabus__ - Syllabus
__Addendum__- Grading - Introduction to class
- 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?

**8/19**

- 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

**8/21**

- define distance, displacement, speed, velocity and acceleration
- "read" position, velocity and acceleration graphs and relate them to one another

**8/23**

- "read" motion graphs (
__worksheets__) __help sheet__for reading motion graphs

**8/27**

- derive the kinematic (or
*suvat*) equations - practice using the kinematic equations
- Homework - solve sample IB test questions on motion graphs; if you have a textbook, read over pp. 27-38 for a review of the material we've covered thus far

**8/29**

- test over motion graphs, with general questions about distance, displacement, speed (average and instantaneous), velocity and acceleration
- Homework - install Logger Pro on your laptop (on a school-issued laptop, install it from the Software Center; on all other laptops, use these
__instructions__); read pp. 27-38 in your textbook

**9/3**

- graph the motion data in this
__spreadsheet__and add trendlines - practice interpreting trendlines and using the extracted (velocity and acceleration) information to interpolate and extrapolate (
__file 1__,__file 2__) - Extra Practice - match motion to graphs with
__this interactive__. - Homework - do test corrections on a separate sheet of paper (just rework the missed problems)

**9/5**

- picture day
- read what Aristotle and Galileo had to say about falling "bodies"
- study how objects fall using a "motion detector" -
__lab instructions__ - homework - finish the lab at home; read (and take notes on) pp. 8-16 in your textbook

**9/9**

- use the kinematic equations for modeling freely falling objects -
__worksheet__ - homework - read about experimental uncertainty (its measurement and propagation in calculations) -
__handout__

____**9/11**

- begin formal lab investigation of free fall acceleration
- the general Lab Report
__Format__

____**9/13**

- calculate lab uncertainties
- the lab report will be due Wed 9/18 (at 11:59 pm) through turnitin.com
- homework - you should get started on the lab report

____**9/17**

- graph the free fall data -- linearize the graph
- homework - complete your lab report; the free fall calculations are due 9/23

____**9/19**

~~quiz over free fall~~postponed until Monday- review free fall
__calculations__ - discuss relative motion
- homework - complete free fall calculations (handout)

____**9/23**

- quiz over free fall
- introduction to vectors
- homework - read pp. 39-43 in your textbook

____**9/25**

- model 2D projectiles
- homework - complete this
__worksheet__of projectile problems (the answers are given within the document)

____**9/27**

- review projectile problem-solving
- projectile motion
__lab__(online) - homework - complete the lab
__pay__for the IB Physics field trip to iFLY! The trip will be Mon, Oct 21.

____**10/1**

- Mythbusters
__video__ - discuss the effect of air resistance on projectile motion
- solve IB projectile problems
__help__with projectiles- homework - extra projectile practice (
__key__)

____**10/3**

- quiz over projectile motion
- discuss the nature of a "law of nature" and the certainty of our knowledge
- homework - pay for the iFLY field trip!

____**10/7**

- an introduction to epistemology, the study of knowledge
- distinguishing between deduction and induction -
__worksheet__ - The Laws of Nature (
__PowerPoint__) __Scientific Laws and What They Say__

____**10/9**

- meeting with counselor
- discuss the concept of a force and the types of forces found within our world (follow this
__guide__and answer questions in your class notebook)

____**10/11**

- review types of forces
- begin lab investigation of Newton's 2nd Law -
__formal lab info__

**No school on Monday or Tuesday**

____**10/17**

- complete the lab
- STUDENTS: before going to iFLY, you or your parent must complete this
- online
__waiver__!! go ahead and do this asap -- reservation #4115004005 __help sheet__for adding max and min trend lines to your graph

____**10/21**

- field trip to iFLY !! - some
__photos__of the trip

____**10/23**

- read and process the information on this
__webpage__ - calculate the force of gravity and discuss weightlessness

____**10/25**

- discuss
__apparent weight__ - calculate friction
- draw free-body diagrams and
__calculate__the acceleration of various objects - homework - the formal lab is due
~~Friday, Oct 25~~Saturday, Oct 26 at 11:59 pm on turnitin.com; try to do these__problems__, after reading the explanations

____**10/29**

- 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.

____**11/1**

- 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 videos
__here__

____**11/6**

- test over forces (even if you were absent last class)
- the
**mini-project**is due__here__by class time today; upload it, don't share it; it will count as a major grade

____**11/8**

- define kinetic and potential energy and work
- homework - read pp. 62-69 in your textbook

____**11/12**

- derive and use the Work-Kinetic Energy Theorem
__calculate__change in kinetic energy from a force-vs-position graph (__key__)

____**11/14**

- solve problems involving work and energy
__sample problems__worked out- practice solving energy
__problems__(note: I am not assigning the entire packet) - upcoming: the
**mousetrap-powered car project**will be assigned next week - upcoming: we will have a test next week on work and energy
- homework - solve at least 12 problems in the green
__packet__[answer__key__]; complete the four mini-__worksheets__

____**11/18**

__calculate__elastic potential energy- solve IB test problems involving elastic PE
- homework - complete pages 2 and 3 of the handout (IB problems on EPE)

____**11/20**

- assign the
**mousetrap-powered car**(due Dec 9) - video__project____help__ - solve additional problems involving elastic potential energy

____**11/22**

- test on work and energy

____**12/3**

- discuss the energy test; spend more time learning energy concepts
- carefully read and think through this
__handout__on work and energy - [we will need to meet during PIT to properly finish this topic; you will need to re-take the exam]
- homework - watch this
__video__on power and efficiency; take notes; we won't discuss the material in class - re-take the exam Friday before school (8 am sharp) or next Wednesday PIT; your grade will be the higher of the two

____**12/5**

- define momentum, discuss its conservation, and model the transfer of momentum in a 2-body collision
- get help by watching this
__video__

____**12/9**

- the mousetrap-powered cars and videos are due [submit the video
__here__] - lecture on impulse and its connection to momentum
- homework - complete
__worksheet__of momentum problems

____**12/11**

- solve IB problems on momentum
- calculate impulse from a force-time graph (
__practice__)

____**12/13**

- quiz on momentum
- homework - review for the midterm

____**12/17**

**midterm exam**, covering all material from the semester

Lab Report Format

Unit One-Page Overviews

1.1 Measurements in physics

1.2 Uncertainties and errors

1.3 Vectors and scalars

2.1 Motion

2.2 Forces

2.3 Work, Energy, and Power

2.4 Momentum

Unit One-Page Overviews

3.1 Thermal Concepts

3.2 Modelling a gas

6.1 Circular Motion

4.1 Oscillations

4.2 Travelling Waves

4.3 Wave Characteristics

5.1 Electric Fields

**Free Fall Motion: s,v,&a graphs**

**How strong is the force of gravity on Earth?**