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Unit 3 Lessons 1-4
| 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 |
| electric conductor | a material through which charges can move freely |
| electrical insulator | a material through which charges cannot move easily |
| semiconductors | a special class of materials that conduct electric charge better than electrical insulators but not as well as electrical conductors |
| electric current | the rate of flow of electric charges |
| voltage | the amount of work required to move each unit of charge between two points |
| electric circuit | a complete, closed path through which electric charges flow |
| series circuit | all parts are connected in a row that forms one path for the electric charges to flow |
| parallel circuit | electric charges have more than one path they can follow |
| magnet | any material that attracts iron or objects made of iron |
| magnetic force | a push or pull |
| magnetic poles | ends of magnets |
| magnetic field | the area surrounding a magnet where magnetic forces can be detected |
| electromagnetism | results when electric currents and magnetic fields interact with each other |
| electromagnet | a solenoid wrapped around an iron core |