PHYS.6.A

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The student is expected to use scientific notation and predict how the magnitude of the electric force between two objects depends on their charge and the distance between their centers using Coulomb's law;
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Knowledge and Skills Statement

Science concepts. The student knows the nature of forces in the physical world.

The image below shows the relationship represented in Coulomb’s law. 
 

the relationship represented in Coulomb’s Law
Image url:File:CoulombsLaw scal.svg - Wikimedia Commons


 

a definite quantity of electricity, either negative or positive; the quantity of electricity held by a body and construed as an excess or deficiency of electrons

a numerical measurement of how far apart objects or points are; the degree or amount of separation between two points, lines, surfaces, or objects; a measure of the length of the path that an object takes without regard for the starting or ending place or the direction of its travel

a component of electromagnetic force that is produced by static (non-moving) electric charges; an attraction or repulsion of particles or objects due to their electric charge

a push or pull between two objects

numerical size of a quantity

Research

Kamkarian, Pejman, and Henry Hexmoor. "Crowd Evacuation for Indoor Public Spaces Using Coulomb's Law." Advances in Artificial Intelligence 2012, no. 340615. (2012). https://doi.org/10.1155/2012/340615

Summary:  This paper focuses on designing a tool for guiding a group of people out of a public building when they are faced with dangerous situations that require immediate evacuation. We combine Coulomb's electrical law, graph theory, and convex and centroid concepts to demonstrate a computer-generated evacuation scenario that divides the environment into different safe boundaries around the locations of each exit door in order to guide people through exit doors safely and in the most expedient time frame.

Research

Darwish, Sager M. "Investigation of Coulomb’s Law and the Nature of the Electric Charge." Journal of Physics Communications 7, no. 4 (2023): 045001. https://doi.org/10.1088/2399-6528/accdb4

Summary:  This theoretical work investigates spin-spin energy in the hydrogen atom and its relation to Coulomb’s force law. A new formula is suggested for the force between two spinning particles. The results agree with Coulomb’s law evaluations; the spin-spin energy is related to the electric potential energy and the electric charge is connected to the rotational energy of the mass.