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IB Physics HL - Year 2 (2019-2020)

**8/15**

- Informational Packet /
__Syllabus__ - Syllabus
__Addendum__- Grading - Welcome back for another year of IB Physics! You are going to learn a ton as we uncover the rules that govern the universe!
- Homework - prepare for a Socratic Seminar on Chapter 1 in your new booklet

**8/19**

- Socratic Seminar on what physics can and cannot do, or say
__PowerPoint__introduction to electric charge, conductors and insulators, and the triboelectric series

**8/21**

- balloon lab
- discuss polarization of conductors and insulators; define an electric dipole
- use Coulomb's Law to calculate the electric force between charges
- Homework - complete the problems on
__this handout__; skip #7

**8/23**

- tape lab
- review homework and practice using Coulomb's Law
- Homework - do problem on board; read Chapter 2 in The Big Picture booklet
- Notice: test over electrostatics next Thursday

**8/27**

- define the electric field -
__handout__ __explore__depictions of the electric field- explore electric field strength with a Van de Graaff generator (IRL and in the 3D VR simulation below)
- Homework - read pp. 169-182 in your IB Physics textbook

**8/29**

- test over electrostatics
- Homework - read pp. 183-186 in your IB Physics textbook; complete the packet of IB test questions on electric fields, and do the "breakdown of air"
__problem__

Lab Report Format

3D VR simulation of electromagnetic phenomena

(Maroon VR - __website__)

Electric Field and Potential Simulation

Unit One-Page Overviews

5.1 Electric Fields

3D Electrostatic Fields Applet

(__website__)

PhET Interactive Simulation - Charges and Fields

(__website__)

**9/3**

- review homework and discuss particle motion through electric fields
- calculate the electric field within a parallel plate capacitor
- homework - complete the notes sheet/
__handout__

**9/5**

- finish discussion of a cathode ray tube (CRT) -
__video__ - graph the energy (as a function of separation) of a two-particle system
- homework - complete the
__packet__on energy

**9/9**

- discuss gravitational potential energy and calculate the escape speed, at the surface of the Earth, for an unpowered rocket -
__handout__ - examine this xkcd
__infographic__on gravity wells - homework - complete the handout; read the NewScientist article, at right

**9/11**

- test over electric fields and electrical and gravitational potential energy
- homework - review this
__handout__, then answer these__questions__(answer__key__)

**9/13**

- practice solving
__problems__regarding forces, fields and energy (answer__key__) - homework - complete the problems from above and do test corrections for points back on the test

**9/17**

- discuss the concept of electric potential -
__notes and problems__ - explore equipotentials using the Electric Field and Potential Simulation, above
- another teacher
__explains__... - homework - complete the Potential packet, up thru p. 11

**9/19**

- review homework; complete packet of IB problems on potential
- assignment of poster
__project__(due next Wednesday)

**9/23**

- an introduction to magnetism and the magnetic field
- powerpoint
__presentation__ - homework - read (and take notes on) pp. 227-235 in your textbook

In China, scientists are exposing crops to electric fields

Courtesy of Liu Binjang

NewScientist

Inside China's attempt to boost crop yields with electric fields

Read the __article__. (21 Aug 2019)

**Well... it's paramagnetic.**

**9/25**

- magnetism practice
__problems__ - homework - complete the problems above, but omit #35 & 36
- for #33 & 34, the force on a current (wire) equation is:
- F = ILB, where L is length of wire and I is current
- for #34, assume I = 5 amps
- HW
__answer key__- try them before checking the key!

**9/27**

__explore__the Charged Particle in a Magnetic Field simulation -->- homework - read the rest of Chp 5.4; solve the IB problems on
- magnetism

**10/1**

- discuss the use of magnetic fields for data storage
- discuss the factors that affect the current in a wire (
__handout__and a few problems) - Ohm's Law lab
- PhET:
__Resistance in a Wire__-__Ohm's Law__ - a few
__slides__on Velocity Selectors and the world's most powerful MRI machine - homework - practice
__problems__on magnetism; and the handout on current; you should also look at the slides posted above

**10/3**

- Series and Parallel Circuits
__lab__ __answer key__to worksheet with 4 current problems

____**10/7**

- test over fields and forces (electric and magnetic), potential energy, potential, and magnetism in general

**10/9**

- complete the Series and Parallel Circuits lab
- homework: read in the yellow booklet, skim pp. 8-9 (because it's interesting), read p. 14 and 17-23; finish the lab; test corrections are due 10/17

**10/11**

- discuss the application of Ohm's Law to series and parallel circuits
- introduce Kirchhoff's laws
- calculate electrical power
- assign
**Electric Art**- due 10/25__project__ - homework - read/complete pp. 23-31 in the yellow booklet; buy foam board and batteries for the Electric Art project; do test corrections

**10/17**

- quick review of combination circuits -
__worked-out problem + practice problem__ - project work day
- homework - complete the practice problem on the
__handout__; see p. 215 in text

**10/21**

- project work day

**10/23**

- practice applying Kirchhoff's laws - worksheet (
__key__) - homework - read Unit 5.3 Electric cells

**10/25**

- Electric Art project due (both artwork and portfolio)
- discuss potential dividers, diodes and thermistors
- discuss internal resistance of a cell -
__PowerPoint__ - solve IB circuit problems
- homework - complete the packet of circuit problems [
__key__] and the__sheet__of problems about internal resistance [__key__]

**10/29**

- test over circuits
- homework - read Unit 5.3 if you haven't already done so

**11/1**

- discuss electromagnetic induction (Unit 11.1 in your book)
__Electromagnetic Induction Lab__(__website__, open in Internet Explorer)- generate a current with a solenoid and magnet
- homework - read Units 5.4 and 11.1 in your textbook (take notes); we'll have a quiz over this material next Friday; also, do test corrections

**11/6**

- practice using Faraday's law and Lenz's law (
__notes/problems__) - quiz review - you might find the first 2 videos
__here__helpful - homework - complete the packet of problems
- homework - read this
__webpage__about induction cooktops, then complete this online__reading check__(Google form) -- this reading check assignment will be due 11/12, but do it before the test if you have time

**11/8**

- quiz (test) over electromagnetic induction

**11/12 (late start)**

- build a speaker -
__how a loudspeaker works__

**11/14**____

- discuss the workings of a dynamo and DC motor
- discuss measuring current and voltage in an AC circuit -
__notes with problems__ - homework - read the Power Generation booklet and the 2 articles below; complete the packet

**11/18**

- explore Faraday's law, and the working of a transformer, in the lab
- lab
__instructions__and assistance (the lab report will be graded) - discuss the role of transformers in ac electricity distribution
- homework - read pp. 444-449 in your textbook; 2nd pd should also do test corrections

**11/20**

- complete the lab

**11/22**

- complete IB problems on transformers
- look at a tesla coil
- homework - complete the end-of-chapter problems for Chp 5 (pp. 240-244)

Thanksgiving Break || Thanksgiving Break || Thanksgiving Break

**12/3**

- analyze a diode bridge rectification circuit
- simple
__simulation__||__video__with explanation || complex__simulation__ - homework - finish the Transformers packet, if you haven't already

**12/5**

- discuss capacitors, including capacitance and the energy stored in a capacitor
- PhET
__simulation__of capacitor

**12/9**

- analyze the charging and discharging of capacitors in the lab
- Excel
__spreadsheet__, for analysis

**12/11**

- discuss circuits containing capacitors in series and in parallel
- solve IB problems involving capacitors

**12/13**

- quiz over capacitors

**12/17**

- semester review

**12/19**

**midterm exam**

Last Year's __Webpage__

Some birds can 'see' magnetic fields.

B Field around 2 current-carrying wires

Lucy Reading-Ikkanda/Quanta Magazine

prototype MRI machine

A collection of excellent videos explaining electricity, its creation, distribution, manipulation and usage.

Power Generation and Distribution

(Perrone 2016)

These videos are rather advanced, but you may enjoy them.

Explore these __interactive tutorials__ on electricity and magnetism!

Nikola Tesla and Thomas Edison

**Why use 3 phase AC electricity?**