Electrostatics, Electric fields & Potential

Ch 32 & 33

Date
Topic
Assignment

Monday & Tuesday

Feb.. 1 & 2

  • Lecture
    • Static vs. Current. charged object, conductors, insulators
    • Drawing charges, electroscope,
    • DEMO: Static Hand holding.
  • LAB ACT: What sign is my charge?

 

 Wednesday & Thursday
Feb.. 3 & 4
  • Lecture:
    • The Golden rules
    • Charging by induction
    • pith balls
    • DEMO: flying bat, plates, popcorn
    • DEMO: Franklin lighting rod.
    • DEMO: Electric shielding

Friday

Feb.. 5

  Physics Quest on electrostatics. Do parts I through IV. Cut and paste the questions in a word processor and type your answers.

Due : Monday

 Weekend

Feb.. 6 & 7

  • Review

 

Finish your notes on charging. The links are on Fridays topics covered.

Monday, Feb.. 8

Tuesday & Wednesday

Feb.. 9 & 10

  • Monday High school electives video. No new content.
    • Periods 1,4, 7, 8
  • Lecture Coulombs law
  • Lab:
    • Investigating Static electricity (double period)

 

Thursday

Feb.. 11

  • Lecture:
    • Electric fields
    • DEMO: Candle flame in E field
    • Electric force, E =F/q
  • Lecture:
    • Electric Potential
    • W = qV
  • Third meeting:
    • Activity: Charges, Energy & Voltage.
  •  Read:
    • Text Ch. 33.4- 33.5
  • Do:

Friday

Feb.. 12

  • Test
    • Chapter 32 Electrostatics
    • Chapter 33 Electric Fields and Potential

 

 

Topics and concepts to focus on

Why "Static" in "static electricity" is a misnomer

Electric charge is conserved when object come into contact

The first Golden rule of electrostatics: Only negative charge moves in static electricity

The second Golden rule of electrostatics: Like charges repel and unlike charges attract.

How to use the triboelectric series

Charging by contact, temporarily by induction and permanently by induction - all steps be able to sketch out and explain

Meaning of "grounding"

Direction of electric fields and sketches of + +, + - , + , -, configurations

Compare and contrast Electric fields with Gravitational fields

Electric field strength force formula.

Electric potential difference of electric fields formula.

Coulombs law and formula


Laboratories

What's your charge?

Explorations in static electricity

Misconceptions

Leaves on an electroscope move apart when a negatively charged, and collapse together when positively charged.

Positive charges move.

Grounding only involves dumping charge (electrons) into the ground

Do you want to know more?

How Electrical Current Affects the Human Body From OSHA whose mission is to assure the safety and health of America's workers by setting and enforcing standards.

How a microwave works From the menu on the left select "Microwave Ovens" a sub menu opens below. Begin there.

Crackling Planets, 8.10.2005, Astronauts on the Moon and Mars are going to have to cope with an uncommon amount of static electricity.

United States Search and Rescue Task Force: Thunderstorms

Electrostatic physics quest A fun quest covering required information in our course. Occasionally I require this as a weekend homework assignment.

School for champions web site has some good fundamental info. on static electricity, also informative everyday information.

 Science joy wagonparallel charged plates notes.


Last updated: February 1, 2010 by D. Boire