---
title: "Static Charge and Electric Fields"
description: "Rubbing moves electrons between surfaces, leaving one negative and the other positive, and like charges push apart. Around any charge is a field, and a strong enough field makes the air itself conduct"
canonical: https://lightmysky.com/learn/science/static-charge-and-electric-fields-mt_6ii6CVOTI5
source: https://lightmysky.com/learn/science/static-charge-and-electric-fields-mt_6ii6CVOTI5.md
retrieved: 2026-09-12
---

> **Agent view.** This is the Markdown twin of the page, for tools and assistants.
> When to use this site, and the call that answers each job: https://lightmysky.com/agent-instructions.md
> API description (OpenAPI 3.1): https://lightmysky.com/openapi.json · Authentication: https://lightmysky.com/auth.md
> Pricing: https://lightmysky.com/pricing.md · Catalog: https://lightmysky.com/llms.txt · Full catalog: https://lightmysky.com/llms-full.txt
> Every machine-readable file on this domain: https://lightmysky.com/.well-known/ai-catalog.json
> Ask for Markdown with `Accept: text/markdown`, a `.md` address, or `?mode=agent`.

# Static Charge and Electric Fields

Rubbing moves electrons between surfaces, leaving one negative and the other positive, and like charges push apart. Around any charge is a field, and a strong enough field makes the air itself conduct, which is the spark.

Subject: Science · Area: Energy · Ages 14 to 16
Page: https://lightmysky.com/learn/science/static-charge-and-electric-fields-mt_6ii6CVOTI5

## Ready when they can

- Explains a charged object in terms of electrons moved, never protons
- Draws field lines around a positive and a negative charge with arrows the right way
- Links a large potential difference across a small gap to a strong field and a spark, and gives an everyday example

## Lesson: Charge, fields, and the spark

Remember the balloon that lifted your hair. Rubbing moves electrons from one surface to the other, never protons. The surface that gains electrons turns negative and the one that loses them turns positive, and like charges push apart while opposite charges pull together. None is created: the charge only separates into matching pairs.

An electric field is the invisible zone of influence around any charge. Draw it with lines that start on positive charges and end on negative ones. Crowded lines mean a strong field, spread out lines mean a weak one, and lines never cross.

**Example.** A big voltage across a small gap makes a fierce field, and air itself can break down and conduct. The shock touching a car door is charge from the drive rushing across a tiny air gap. Lightning is the same story written huge across the sky.

Insulators trap shifted charge in place for minutes, which is why a rubbed balloon sticks to a wall. Metals let the imbalance flow away at once, so they rarely show static. Static tricks always use plastic, glass, or cloth, never bare metal.

**Recap.** Electrons move, fields point away from positive, and a fierce field across a gap makes a spark.

## Practice

8 questions on this page, each with its working shown.

## Needs first

- [Static electricity and sparks](https://lightmysky.com/learn/science/static-electricity-and-sparks-mt_2_YoprauaJ)
- [Transformers and the National Grid](https://lightmysky.com/learn/science/transformers-and-the-national-grid-mt_ExV4Kc_7_P)

## Opens up

- [Inside the Atom: the Nuclear Model](https://lightmysky.com/learn/science/inside-the-atom-the-nuclear-model-mt_B_PtnvyRIo)
- [Coulomb's Law and the Electric Field of a Point Charge](https://lightmysky.com/learn/science/coulombs-law-and-the-electric-field-of-a-point-charge-mt_p7FuzIsQch)