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Sci Ch.7 '14
Mr. Austin's orders
Term | Definition |
---|---|
acetate | A type of plastic used in photographic film and overhead transparencies. |
action-at-a-distance forces | Forces that can have an effect on an object without touching it. |
charging by conduction | 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. |
conductors | Materials that allow electrons to move freely on and through them. |
contact forces | Forces that have an effect only on objects that they touch. |
coulomb | The unit of electric charge, named after the French physicist Charles Coulomb; one coulomb is the amount of charge passing a point in one second when one ampere of current is flowing. |
electric force | A push or pull between charged objects. |
electrons | Negatively charged particles surrounding the positive nucleus. |
force | A push or pull exerted on an object. |
grounding | Connecting a conductor so that electric charge flows into Earth's surface. |
insulators | Materials, such as glass, plastics, ceramics, and dry wood, that do not allow electrons to move easily on or through them. |
laws of static charge | Physical laws that state that like charges repel, opposite charges attract , and neutral objects attract charged objects. |
static charge | An electric charge that can be collected and held very nearly fixed in one place. |