Electricity Physical Science.

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Presentation transcript:

Electricity Physical Science

Electric Charge and Static Electricity Electric charge – a property that causes subatomic particles such as protons and electrons to attract or repel each other. Electric charge is produced by an excess or shortage of electrons. ***LIKE CHARGES REPEL, OPPOSITE CHARGES ATTRACT*** Electric field – the space around the charge where its effect reaches.

Transfer of Static Charge Friction – charging by movement

Electrons move from your hair to the balloon Electrons move from your hair to the balloon. Because your hair loses electrons – it becomes positively charged. Because the balloon gets electrons – it becomes negatively charged. The objects build charge through contact!!

Transfer of Static Charge Contact – requires touch

One object has an excess of charge and transfers charge to the other object BY CONTACT!!

Transfer of Static Charge Induction – travels through space

One object has charge and it transfers to the other object WITHOUT contact!!!

Rules of Transfer ONLY enough charge transfers to relieve the excess. ONLY electrons can move ---- EVER

Homework Read 600-603 Questions 1-10