Given a certain layout of positive and negative electrodes, this simulator will calculate and display the resulting electric potentials and fields. Built by Nathaniel Klemm.
Category: Electricity
Dan Schroeder Physics Educational Software
Physics education software created mostly by Dan Schroeder, some excellent simulations in here.
Physics Simulations
Lots – hundreds at least – of small physics applets, around a wide range of topics, separated out into two semesters of college physics. Motion, thermo, EM, waves, and optics all covered. Created by Andrew Duffy.
JavaLab
Just an amazing trove of science simulations built by middle school teacher, DJ Lee. I’m amazed at how much is covered here.
Electric Field Hockey
An absolute classic – guide an electric charge to the goal using only other electric charges. Created by PhET.
Index of Simulations
A spreadsheet pulled together for teachers of a categorized list of hundreds (wait, thousands!) of simulations you can find online, sorted by topic. An incredible resource organized by Helen Reynolds.
PhyPhox
Turn your phone into a physics lab. Graph things like acceleration, pressure, and magnetic field. Very powerful stuff. Created by RWTH Aachen University.
Particulars
Particle Physics game for PC where you control a down quark through level after level of puzzles that require you to avoid, attract, and repel other Standard Model particles. Created by SeeThrough Studios.
Universe & More
A collection of interactive physics resources that are fun and easy to use. By Matthew Blackman.
The Physics Classroom
Sets of pages with lessons and interactives about a variety of physics topics.