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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

(flashphysics.org)

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.