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Ch. 17, 18 vocab
vocab words for Ch. 17 and Ch. 18
| Term | Definition |
|---|---|
| Law of electric charges | the law that states that like charges repel and opposite charges attract |
| Electric Force | the force of attraction or repulsion on a charged particle that is due to an electric field |
| electric field | the space around a charged object in which another charged object experiences an electric force |
| Electrical conductor | a material in which charges can move freely |
| Electrical insulator | a material in which charges cannot move freely |
| static electricity | electric charge at rest; generally produced by friction or induction |
| electric discharge | the release of electricity stored in a source |
| electric current | the rate at which charges pass through a given point; measured in amperes |
| voltage | the potential difference between two points; measured in volts |
| resistance | in physical science, the opposition presented to the current by a material or device |
| cell | in physics, in electricity, a device that produces an electric current by converting chemical or radiant energy into electrical energy |
| thermocouple | a device that converts thermal energy into electrical energy |
| photocell | a device that converts light energy into electrical energy |
| electric power | the rate at which electrical energy is converted into other forms of energy |
| series circuit | a circuit in which the parts are joined one after another such that the current in each part is the same |
| parallel circuit | a circuit in which the parts are joined in branches such that the potential difference across each part is the same |
| magnet | any material that attracts iron or materials containing iron |
| magnetic pole | one of two points, such as the ends of a magnet, that have opposing magnetic qualities |
| magnetic force | the force of attraction or repulsion generated by moving or spinning electric charges |
| electromagnetism | the interaction between electricity and magnetism |
| solenoid | a coil of wire with an electric current in it |
| electromagnet | a coil that has a soft iron core and that acts as a magnet when an electric current is in the coil |
| electric motor | a device that converts electrical energy into mechanical energy |
| electromagnetic induction | the process of creating a current in a circuit by changing a magnetic field |
| electric generator | a device that converts mechanical energy into electrical energy |
| transformer | a device that increases or decreases the voltage of alternating current |
Created by:
michellekung
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