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Chapter words
Word | Definition |
---|---|
electric force | The attraction or repulsion between electric charges. |
electric field | The region around a charged object where the object’s electric force interacts with other charged objects. |
static electricity | A buildup of charges on an object. |
Conservation of change | The law that states that charges are neither created nor destroyed but only transferred from one material to another. |
Friction | A method of charging an object by rubbing it against another object; the force that one object exerts on another when the two rub against each other. |
Conduction | A method of charging an object by allowing electrons to flow by direct contact from one object to another object. |
Induction | A method of charging an object by means of the electric field of another object; the objects have no direct contact. |
Static Discharge | The loss of static electricity as electric charges transfer from one object to another. |
Electric Current | The continuous flow of electric charges through a material |
Electric circuit | A complete, unbroken path through which electric charges can flow. |
Conductor | A material through which charges can easily flow. |
Insulator | A material through which charges cannot easily flow |
Voltage | The difference in electrical potential energy between two places in a circuit. |
Voltage Source | A device that creates an electrical potential energy difference in an electric circuit; batteries and generators are voltage sources. |
Resistance | The measurement of how difficult it is for charges to flow through a material. |
chemical energy | The energy stored in chemical compounds. |
chemical reaction | A process in which substances change into new substances with different properties. |
electrochemical cell | A device that transforms chemical energy into electrical energy. |
electrode | A metal part of an electrochemical cell, which gains or loses electrons. |
electrolyte | A liquid or paste that conducts electric current. |
Terminal | A convenient attachment point used to connect a cell or battery to a circuit. |
Battery | A combination of two or more electrochemical cells in series. |
Wet Cell | An electrochemical cell in which the electrolyte is a liquid. |
Dry Cell | An electrochemical cell in which the electrolyte is a paste. |