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Electricity
8sc big20 electricity
| Term | Definition |
|---|---|
| electric force | the force between charged objects |
| photocell | the part of a solar panel that converts light into electrical energy |
| conductor | material in which charges can move freely |
| resistance | opposition to the flow of electric charge; expressed in ohms |
| Law of Electric Charges | law that states like charges repel and opposite charges attract |
| conduction | method of charging an object when electron are transferred from one object to another by direct contact |
| voltage | difference in energy per unit charge as a charge moves between two points in an electric circuit(same as potential difference) |
| potential difference | energy per unit charge; the difference in energy per unit charge as a charge moves between two points in an electric circuit (same as voltage); expressed in volts |
| static electricity | buildup of of electric charges on an object |
| load | device that uses electric energy to do work |
| cell | a device that produces electric current by converting chemical energy into electrical energy |
| battery | device that is made of several cells and that produces an electric current by converting chemical energy into electrical energy |
| insulator | material in which charges cannot easily move |
| parallel circuit | a circuit in which different loads are located on separate branches |
| current | rate at which charge passes a given point; expressed in amperes |
| induction | method of charging an object that occurs when charges in an uncharged object are rearranged w/o direct contact with charged object |
| electric power | rate at which electrical energy is used to do work, expressed in watts(W) |
| circuit | complete closed path through which electric charges flow |
| electric discharge | loss of static electricity as charges move off an object |
| series circuit | a circuit in which all parts are connected in a single loop |