# Segment C: Coulomb's Law

We explain Coulomb's law both qualitatively as well as mathematically. We examine this law even further by doing an example problem where we solve for the electric force and field strengths. The properties of an electric field are also discussed.

## Segment C: Coulomb's Law

Segment C: Coulomb's Law

We explain Coulomb's law both qualitatively as well as mathematically. We examine this law even further by doing an example problem where we solve for the electric force and field strengths. The properties of an electric field are also discussed.

### Science

SP5

Obtain, evaluate, and communicate information about electrical and magnetic force interactions.

SP5.a

Develop and use mathematical models and generate diagrams to compare and contrast the electric and gravitational forces between two charged objects.

-Understand Coulomb’s Law and compare it to the gravitational force, mathematically and qualitatively.

-Define electric fields and show how they relate to electric force.

-Calculate electric field and electric force strength.

-Describe Millikan’s oil drop experiment and discuss how it lead to understanding of the quantized nature of charge.

Coulomb’s Law - law devised by Charles Coulomb that explains the factors that affect contribute to the electrostatic force; is equal to Coulomb’s constant times the magnitude of two charges divided by the distance between the charges, squared.

electric field (E) - a region around a charged particle or charged object within which a force is exerted on other charged particles or charged objects.

electrostatic force (FE) - one of the four fundamental forces of the universe; the attraction and repulsion of particles based on their electrical charges; is equal to Coulomb’s constant times the magnitude of two charges divided by the distance between the charges, squared.

The Physics in Motion teacher toolkit provides instructions and answer keys for study questions, practice problems, labs for all seven units of study. GPB offers the teacher toolkit at no cost to Georgia educators.To order your teacher toolkit, complete and submit this form to request the teacher toolkit. You only need to submit this form one time to get materials for all seven units.