Understanding Static Electricity Phenomena in Atomic Structures
Explore the fundamentals of atomic structure, electron charges, and how elements interact through static electricity. Learn about charging rods, bringing charges together, the electric field, and practical applications of static electricity in daily life.
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Presentation Transcript
Simple Atomic Structure The structure of the atom ELECTRON Negative NEUTRON No Charge PROTON Positive Two positive protons and two negative electrons Gain an electron to become negative Lose an electron to become positive More free powerpoints at http://www.worldofteaching.com
Charging Up Rods It s all about moving electrons Acetate positive Polythene Negative Cloth Negative Cloth Positive + + - - + + + + - - - - + + - - + + - -
Bringing Charges Together + - + - + - Attract - - - - - - + + + Repel Repel
The Electric Field This is a region where a charge experiences a force The field is from + to - Neutral Point Positive Plate Negative Plate
- - -
The Test for Charge The positive rod attracts the balloon + + + So the balloon must be negative NO The balloon is uncharged + + + Build up of negative charge on this side
The Test for Charge is Repulsion This balloon must be negative This balloon must be positive
Uses of Static Electricity Spraying a Car Positive Car Negative Spraygun The paint spreads out as each negative drop repels No paint is wasted as the positive car attracts the negative paint
Removing Smoke from Power Station Chimnies No smoke leaves the chimney Positive Plate Negative Plate Charge up the Smoke
Earthing Petrol Tankers Petrol rubbing against the pipe can build up a static charge which could cause an explosion The tanker is joined to the ground with a wire to stop a charge building up
