This introduction covers The Shock That Started It All within Static Electricity for GCSE Physics. Revise Static Electricity in Electricity for GCSE Physics with 15 exam-style questions and 12 flashcards. This topic appears regularly enough that it should still be part of a steady revision cycle. It is section 1 of 15 in this topic. Use this introduction to connect the idea to the wider topic before moving on to questions and flashcards.
⚡ The Shock That Started It All
You've walked across a carpet in your socks, reached for a door handle, and — ZAP. A tiny spark leaps from your fingertip. Or you've pulled a jumper over your head and heard crackling, felt your hair stand up. What's happening in those moments is the same process behind lightning bolts that can kill you. The same principle that makes a photocopier work, that paints cars perfectly, that starts a stopped heart with a defibrillator. Static electricity isn't a minor curiosity — it's charge building up silently until it can't be contained any more.
Practice questions for Static Electricity
When a plastic rod is rubbed with a cloth, the rod becomes negatively charged. Which statement best explains why?
Explain why a fuel tanker must be earthed before fuel is pumped, and describe how earthing prevents a dangerous spark.
Quick recall flashcards
Give THREE uses of static electricity.
1. Inkjet printers — charged droplets deflected by electric fields
2. Photocopiers — charged toner attracted to charged drum
3. Electrostatic spray painting — charged paint attracted to oppositely charged object
(Also: defibrillators, electrostatic precipitators)
State the rule for forces between electric charges.
Like charges REPEL each other. Unlike (opposite) charges ATTRACT each other.