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Electricity
Chapter 6
Term | Definition |
---|---|
Law of conservation of charge | Charge can be transferred from object to object, but it cannot be created or destroyed. |
Electric field | Surrounds every electric charge and exerts force that causes other electric charges to be attracted or repelled. |
Conductor | A material through which electrons move easily. |
Insulator | A material in which electrons are not able to move easily. |
Electroscope | A device that can detect electric charge. |
Electric current | The net movement of electric charges in a single direction. |
Electric circuit | A closed path that electric current follows. |
Resistance | The tendency for a material to resist the flow of electrons and to convert electrical energy into other forms of energy. |
Series circuit | An electric circuit with only one branch. |
Parallel circuits | Contain two or more branches for current. |
Electrical power | The rate at which electrical energy is converted to another form of energy. |
Ohm's law | The current in a circuit equals the voltage difference divided by the resistance. |
Voltage difference | Related to the force that causes electric charges to flow. |
Charging by contact | The process of transferring charge by touching or rubbing. |
Charging by induction | The rearrangement of electrons on a neutral object caused by a nearby charges object. |
Static electricity | The accumulation of excess electric charge on an object. |