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Grade 6 Magnets & E
Chapter 2 Electric Charges and Current
| Question | Answer |
|---|---|
| electric field | the electric force that extends from every charged particle |
| static electricity | the buildup of charges on an object |
| friction | the transfer of electrons from one object to another by rubbing |
| conduction | the transfer of electrons from a charged object to another by direct contact |
| induction | the movement of electrons to one part of an object by the electric field of another object |
| static discharge | the loss of static electricity as electric charges move off an object |
| electroscope | an instrument that can detect the presence of electric charges, but cannot determine the type of charge |
| electrical potential | the potential energy per unit of electric charge |
| potential difference | the difference in electrical potential between two places |
| voltage | the unit of measure of potential difference |
| voltage source | creates a potential difference in an electric circuit; batteries and generators |
| electrical resistence | the opposition to the flow of charges |
| voltmeter | a device that measures potential difference or voltage |
| ammeter | a device that measures current |
| Ohm's Law | a conductor or any other device that has a constant resistance regardless of the voltage |
| series circuit | all the parts of the circuit are connected one after another; only one path for electricity to follow |
| parallel circuit | different parts of the circuit are on separate branches; more than one path for current to take |
| short circuit | a connection that allows current to take an unintended path |
| third prong | a round prong of a plug that connects the metal shell of an appliance to the ground wire of a building |
| grounded | electrical systems lead charges from a circuit into the ground |
| lightning rod | a metal rod mounted on a building in order to protect a building from lightning |
| fuse | a device that contains a thin strip of metal that will melt if too much current flows through it |
| circuit breaker | a safety device that uses an electromagnet to shut off the circuit when the current gets too high |
| conservation of charge | electrons are transferred from one location to another; charges are not created or destroyed |
Created by:
Dcoleman
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