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Chapter 7 Vocab.
Term | Definition |
---|---|
Static Electricity | The accumulation of excess electric charge on an object. |
Law of Conservation of Charge | States that charge can be transferred from one object to another but cannot be created or destroyed. |
Conductor | Material,such as copper wire, in which electrons can move easily. |
Insulator | material in which electrons are not able to move easily. |
Charging by Contact | Process of transferring charge between objects by touching or rubbing. |
Charging by Induction | Process of rearranging electrons on a neutral object by bringing a charged object close to it. |
Electric Current | The net movement of electric charges in a single direction, measured in amperes (A). |
Voltage Difference | Related to the force that causes electric charges to flow; measured in volts (V). |
Circuit | Closed conducting loop through which an electric current can flow. |
Resistance | Tendency for a material to oppose electron flow and change electrical energy into thermal energy and light; measured in ohms. |
Ohm's Law | States that the current in a circuit equals the voltage difference divided by the resistance. |
Series Circuit | Circuit in which electric current has only one path to follow. |
Parallel Circuit | Circuit in which electric current has more than one path to follow. |
Electrical Power | Rate at which electrical energy is converted to another form of energy; expressed in watts (W). |