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Motion and Forces
Unit 3 Vocabulary
| Term | Definition |
|---|---|
| electric charge | a property that leads to electromagnetic interactions between the particles that make up matter |
| static electricity | the build up electric charge on an object |
| electrical conductor | a material through which charges can move freely |
| electric insulator | a material through which charges can not move easily |
| semiconductor | 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 that is required to move each unit of charge between two points |
| resistance | the opposition to the flow of electric charges |
| electric circuit | a complete closed path through which electric charges can flow |
| series circuit | all parts are connected in a row that form one path for the electric charges to flow |
| parallel circuit | electric charges have more than one path that they can flow |
| magnet | to describe any material that attracts iron or objects made of iron |
| magnetic force | the push or pull that two magnets exert on each other |
| magnetic pole | the ends or a magnet |
| 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 |
| electormagnet | wrapping a solenoid around an iron core |