Particle properties {charge, electricity}| can cause electric force. Electron charge {negative charge} is one negative unit. Proton charge {positive charge} is one positive unit. Total electric charge is sum of particle electric charges.
static electricity
Rubbing glass with cloth keeps protons on glass and puts electrons on cloth. Rubbing rubber with cloth puts electrons on rubber and keeps protons on cloth. Rubbing energy frees electrons from rubbed material surface. Quickly pulling the materials apart leaves net charge on both materials. Sliding on rugs rubs electrons off rug, and touching metal doorknobs makes electrons jump to metal.
static electricity: lightning
High winds, when hot air rises, rub higher cold air, separate electrons from air molecules, and take electrons away before they can recombine. Lightning carries electrons back to positive-charge regions or to ground.
strong nuclear force
Only strong nuclear force can change particle electric charge.
Physical Sciences>Physics>Electromagnetism>Charge
5-Physics-Electromagnetism-Charge
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Date Modified: 2022.0224