Ch 12: Electrical Forces and Fields in Physics

About This Chapter

Watch online video lessons to learn about electric force fields, Gauss's law, electric flux and more. Each lesson is accompanied by a short multiple-choice quiz you can use to check your understanding of these electricity topics.

Electrical Forces and Fields - Chapter Summary and Learning Objectives

This chapter's video lessons can show you how electrically charged subatomic particles determine an object's electrostatic force and conductivity. Learn how to illustrate these concepts with an electric field diagram and identify units of measurement for electric charge. By the end of this chapter, you should be familiar with the following:

  • Atomic properties of electric charge
  • Effects of particle distance on force
  • Factors affecting a material's conductivity

Video Objective
Electric Charge and Force: Definition, Repulsion & Attraction Introduces the atom, electrons and protons. Lesson content also discusses why some materials become charged, as well as why like charges repel and opposite charges attract.
Electric Force Fields and the Significance of Arrow Direction & Spacing Expands the idea of repulsion and attraction into a field model before discussing the significance of the arrow direction and spacing used to indicate particle charge and the strength of an electrical field.
Coulomb's Law: Variables Affecting the Force Between Two Charged Particles Examines the variables that affect the force between two charged particles and introduces the Coulomb as a unit of charge.
Insulators and Conductors: Examples, Definitions & Qualities Describes qualities that make a material a good conductor or insulator of electricity and heat. Examples of common conductors and insulators are also provided.
Gauss's Law Explains the relationship between an object's electric charge, permittivity and electric flux.

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