170 likes | 344 Views
Electricity. Electricity involves Charges. repel. Like charges ____________ Opposite charges ___________ What are the charged particles in an atom? Protons Electrons Locations for each? Which would have more freedom to move?. attract. Electricity is the flow of electrons.
E N D
Electricity involves Charges repel • Like charges ____________ • Opposite charges ___________ • What are the charged particles in an atom? • Protons • Electrons • Locations for each? • Which would have more freedom to move? attract
Electricity is the flow of electrons. • Field energy – electrons within the field will be induced to move. • Conductors are materials whose electrons move easily • Insulators are materials whose electrons don’t move easily.
What can make electrons move? • Things that can induce an electrical field: • Magnets • Currents
Electrical Potential Energy • Which way will the electron tend to go? ------- - +++++++ • Electrical potential in measured in _____________ (___) and is also called ___________________________. • When the electron is moving, it’s potential energy can be converted to _____________ and it can do ______
When electrons are induced to move in a particular direction • Current - measured in amperes (A) • Circuit – a path that starts and ends in the same place • http://www.physicsclassroom.com/Class/circuits/ http://www.andythelwell.com/blobz/
How batteries work • Remember anions and cations? • AC or DC?
How Generators Work • http://vimeo.com/19671981 • http://www.wvic.com/content.cfm?PageID=688 • AC or DC?
Rate of flow of electricity • The rate of flow of electrons in a current is measured in ______________(__) • What does speed of a wave depend on?
Kinds of circuits In a row Separate paths • Series – • Parallel –