Static Electricity (OCR GCSE Physics A (Gateway Science Suite)): Flashcards
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What is static electricity?
What is static electricity?
Build-up of electric charge on surfaces
How is static electricity produced?
How is static electricity produced?
Rubbing two surfaces together
Particles that move in static electricity
Particles that move in static electricity
Electrons
Charge on object losing electrons
Charge on object losing electrons
Positively charged
Charge on object gaining electrons
Charge on object gaining electrons
Negatively charged
What is a spark in static electricity?
What is a spark in static electricity?
Charge jumping through air to balance charges
Static electricity use: spray painting
Static electricity use: spray painting
Ensures paint spreads evenly and sticks
Static electricity use: photocopiers
Static electricity use: photocopiers
Attracts toner to paper in correct pattern
Static electricity use: air purifiers
Static electricity use: air purifiers
Attracts dust and particles for removal
Static danger: electric shocks
Static danger: electric shocks
Charge build-up causes shocks when touching objects
Static danger: fires/explosions
Static danger: fires/explosions
Sparks ignite flammable gases or liquids
Static danger: electronics
Static danger: electronics
Components damaged by static discharge
Why warm air rises in clouds
Why warm air rises in clouds
Less dense than cold air
How charge forms in clouds
How charge forms in clouds
Ice crystals rubbing as they move upward
What is lightning?
What is lightning?
Electrons jumping from cloud to ground