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Electricity is the movement of electrically charged particles, flowing as a current at different speeds. Learn about the nature of charges, charging of atoms, and how charges move through friction, conduction, and induction. Discover the concepts of static electricity and current electricity, and the distinctions between conductors and insulators.
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What is Electricity? • Movement of electrically charged particles • Moves as a current • Current is how fast or how slow it follows a pathway from point a to point b • Will always move from the negative object (more electrons) to the positive (less electrons) because positives attract negatives
No charges are created or destroyed • How does an atom get a charge? • Loses an electron • Law of electric charges • Like charges repel • Opposite charges attract • No charges are created or destroyed
How do electric charges move? • Friction: • two objects are touching and in motion • electrons are wiped from one to another • steals electrons • Conduction: • electrons move by direct contact • Electrons are transferred from more to less • Induction: • electrons move without direct contact • one object is charged • rearranges the charge in the other object
Two types of Electricity • Static electricity: electric charge at rest. Electrons are stored on an object • Current electricity • Two Types of Materials • Conductor: charges can move easily through • Insulator: charges cannot move easily through