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Electricity & Mag
Electricity and Magnetism Unit
| Question | Answer |
|---|---|
| Current Electricity | A form of electricity in which electric charges move from one place to another through a conductor. |
| Static Electricity | A form of electricity in which electric charges collect on a surface and may eventually discharge to another object. |
| Conductor | A material through which electricity can flow easily (allows the electrons to flow from one atom to the next easily). |
| Insulator | A material that slows or stops the flow of electricity (does not allow the electrons to flow to the next atom easily). |
| Circuit | A looped path of conductors through which electric current flows. |
| Voltage source | A device that creates an electrical potential energy difference in an electric circuit; batteries and generators are examples. The "potential difference" is what allows the battery to "push" the electrons through the circuit. |
| Voltage | The potential difference measured in volts. The "push" the electrons need to start moving through the circuit. |
| Resistance | A material's opposition to the flow of electric current. |
| Series circuit | An electric circuit with a single path. |
| Parallel circuit | A circuit that contains more than one path for current to flow. |
| Electric force | The attraction or repulsion between electric charges. |
| The law of conservation of charge | Charges are not created or destroyed. They are just transferred. |
| Electric discharge | The loss of static electricity as electric charges transfer from one object to another. |
| Attraction | Opposite poles do this. Opposite charges do this too. |
| Repulsion | Like poles do this. Like charges do this too. |
| Magnetic Poles | All magnets have a North and a South of this. |
| Magnetic Field | The area of magnetic force around a magnet. |
| Magnetic Domain | When the electrons in a material are spinning the same direction, it becomes magnetized. |
| Temporary Magnet | A magnet made from a material that easily loses its magnetism. |
| Permanent Magnet | A magnet made from a material that keeps its magnetism for a long time. |
| Ferromagnetic Material | A material that shows strong magnetic properties. Iron, nickel, cobalt are considered this. |
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