Physics Simulation
Explore electrostatic forces, charge interactions, and the dominance of Fe over Fg through hands-on interactive simulations.
Coulomb's Law Simulator
Drag particles to see electrostatic forces in action
Add Particles
Force Comparison
Electrostatic force is 1e+14× stronger than gravity!
Negative Charges
Blue particles carry negative charge (like electrons). They attract positive charges and repel other negative charges.
Positive Charges
Red particles carry positive charge (like protons). They attract negative charges and repel other positive charges.
Distance Matters
The force follows an inverse-square law: halving the distance quadruples the force. Try moving particles closer!
Key Physics Concepts
Coulomb's Law
The electrostatic force between two charges is proportional to the product of their charges and inversely proportional to the square of the distance.
Electron Dominance
For charged particles, electrostatic forces completely dominate over gravity. This is why neutrality assumptions fail in plasma environments.
Coulomb's Constant
This proportionality constant determines the strength of electrostatic interactions. It's an enormous number, explaining why even tiny charges create significant forces.
Elementary Charge
The fundamental unit of charge carried by a single electron or proton. It takes ~6.242×10¹⁸ electrons to make 1 Coulomb.