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Unit 3, Lesson 1-4
Electricity and Magnetism
Term | Definition |
---|---|
Electric Charge | A property that leads to electromagnetic interactions between the particles that make up matter. |
Static electricity | The buildup of electric charge on an object. |
Electrical conductor | A material through which charges can move freely. |
Electrical insulator | A material though which charges cannot move easily. |
Semiconductor | A special class of materials that conduct electric charge better than electrical insulators, but not as well as electrical conductors. |
Electrical current | The rate of flow of electric charges. |
Voltage | The amount of work required to move each unit of charge between two points. |
Resistance | The opposition to the flow of electric charge. |
Electric circuit | A complete, closed path through which electric charges can flow. |
Series circuit | All parts are connected in a row that forms one path for the electric charges to follow. |
Parallel circuit | Electric charges have more that one path that they can follow. |
Magnet | Any material that attracts iron or objects made of iron. |
Magnetic force | A push or pull. |
Magnetic pole | The ends. |
Magnetic field | The area surrounding a magnet where magnetic forces can be detected. |
Electromagnetism | When electric currents and magenetic fields interact with eachother. |
Electromagnet | A solenoid around an iron core. |