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This text is meant to accompany class discussions. It is not everything there is to know about uniform circular motion. It is meant as a  prep for class. More detailed notes and examples are given in the class notes, presentations, and demonstrations (click here.)

Click for the questions that go with this reading
Table of Contents
Objectives ...This page

Insulators and Conductors
Charge Model

Triboelectric Effect
Charge Sharing
Charging by Induction

Ben Franklin
Corona Discharge


Electric Fields
Vector Fields
Field Lines
Simple Motion in a Field


Electric Field Appications
Ionic Wind
Lightning Safety
Milikan's Experiment
Short Summary on Quarks


Making an Electron Gun
Electron Gun's Analysis


Work Done by an Electric Field on a Charged Particle


01 Class notes coving the introduction to electrosatics.
02 Class notes: Electric fields, Faraday Cages and Lightning Safety
03 Class notes: The equations and electric fields
Solutions to selected homework problems.
Class acticity on field mapping.
One of three online quizzes. It does not cover everything that is on the test but it wil help.
Two of three online quizzes. It does not cover everything that is on the test but it wil help.
Three of three online quizzes. It does not cover everything that is on the test but it wil help.
Mastery assignment. Completing this and turining it in on time is your ticket to taking the mastery test.
Animations, definitions and an account of Ben Franklin's Kite experiment


Students will be able to:
  1. Define and list Insulators
  2. Define and list Conductors
  3. Describe the "charge model"
  4. Describe charging due to induction
  5. Describe charging due to charge sharing
  6. Ben Franklin’s Kite experiment.
    • Describe what lightning was though to be prior to June, 1752.
    • Describe its importance.
  7. Lightning Safety
  8. Define a FARADAY cage
  9. Give examples of a Faraday cage
  10. Solve problems involving charge sharing
  11. Describe the ionization of gasses
  12. Describe the ionic wind
  13. Define an E-Field.
  14. Draw an electric field (E-field) between two charged objects
  15. Identify the charge of an object based upon its E-field
  16. Describe the direction a positively or negatively charged object will travel when immersed in an E-field
  17. List the rules for drawing an E-field
  18. Describe the relative E-field strengths between two objects based upon their E-fields
  19. Define the SI units of an E-field
  20. Calculate the magnitude of the force felt on a charged particle when immersed in an E-field
  21. Use the relationship F=qE in solving word problems
  22. Ratio problems
  23. Numerical evaluation problems
  24. Draw the symbol for a battery
  25. Label the positive and negative terminals on a battery symbol
  26. Define what is meant by electrical “current.”
  27. Give the symbol for current.
  28. Describe in physics terms what a dead battery represents
  29. Describe the recharging of a battery
  30. Calculate how long a battery will last before becoming dead or how long it will take to recharge a battery.
  31. Use V=Ed in solving word problems
  32. Use the relationship V=Ed in solving word problems
    1. Ratio problems
    2. Numerical evaluation problems
Define an “electronVolt” and use it in calculations



by Tony Wayne ...(If you are a teacher, please feel free to use these resources in your teaching.)