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38 Cards in this Set
- Front
- Back
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Conductor |
A material that allows electrons to move separately from their atomic orbits; an object with properties that allow charges to move about freely within it |
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Coulomb force |
Another term for the electrostatic force |
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Coulomb interaction |
The interaction between two charged particles generated by the coulomb forces they exert on one another |
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Coulomb's law |
The mathematical equation calculating the electrostatic force vector between two charged particles |
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Dipole |
A molecule' s lack of symmetrical charge distribution, causing one side to be more positive and another to be more negative |
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Electric charge |
A physical property of an object that causes it to be attracted toward or repelled from another charged objects; each charged object generates and is influenced by a force called an electro magnetic force |
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Electric field |
A 3 dimensional map of the electric force extended out into space from a point charge |
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Electric field lines |
A series of lines drawn from a point charge representing the magnitude and direction of force exerted by that charge |
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Electromagnetic force |
One of the 4 fundamental forces of nature; the electromagnetic force consist of static electricity moving electricity and magnetism |
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Electron |
A particle orbiting the nucleus of an atom and carrying the smallest unit of negative charge |
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Electrostatic equilibrium |
An electrostatically balanced state in which all free electrical charges have stopped moving about |
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Electrostatic force |
An answer the amount and direction of attraction or repulsion between 2 charged bodies |
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Electrostatic precipitators |
Filters that apply charges to particles in the air then attract those charges 2 of filter removing them from the air stream |
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Electrostatics |
The study of electric forces that are static or slow moving |
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Faraday cage |
A metal shield which prevents electric charge from penetrating its surface |
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Field |
A map of the amount and direction of a force acting on other objects extending out into space |
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Free charge |
An electrical charge either positive or negative which can move about separately from its base molecule |
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Free electron |
An electron that is fried and move away from its atomic orbit |
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Grounded |
When a conductor is connected to the Earth allowing charge to freely flow to and from earth's on limited reservoir; Connected to the ground with a conductor so that charge flows freely to and from the Earth to the grounded object |
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Induction |
The process by which an electrically charged objects brought near neutral object created charge in that objects |
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Ink-jet printer |
Small ink droplets sprayed with an electric charge are controlled by electrostatic plates to create images on paper |
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Insulator |
A material that holds electron securely within their atomic orbits |
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Ionosphere |
A layer of charged particles located around 100 km above the surface of earth, which is responsible for a range of phenomena including the electric field surrounding earth |
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Laser printer |
Uses a laser to create a photoconductive image on a drum, which attracts dry ink particles that are then rolled onto a sheet of paper to print high quality copy of the image |
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Law of conservation of charge |
States that whenever a charge is created, an equal amount of charge with the opposite sign is created simultaneously |
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Photoconuctor |
A substance that is an insulator until it is exposed to light, when it becomes a conductor |
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Point charge |
A charged particle, designated Q, generating an electric field |
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Polar molecule |
A molecule with an asymmetrical distribution of positive and negative charge |
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Polarization |
Slight shifting of positive and negative charges to opposite sides of an atom or molecule |
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Polarized |
A state in which the positive and negative charges within an object have collected in separate locations |
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Proton |
A particle in the nucleus of an atom and carrying a positive charge equal in magnitude and opposite in sign to the amount of negative charge carried by an electron |
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Screening |
The dilution or blocking of an electrostatic force on a charged object by the presence of other charges nearby |
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Static electricity |
A buildup of electric charge on the surface of an object |
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Test charge |
A particle (designated q) with either positive or negative charge set down within an electric field generated by a point charge |
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Van de Graaff generator |
A machine that produces a large amount of excess charge, used for experiments with high voltage |
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Vector |
A quantity with both magnitude and direction |
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Vector addition |
Mathematical combination of 2 or more vectors, including their magnitudes, directions, and positions |
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Xerography |
A dry copying process based on electrostatics |
