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Electricity
- a form of energy that results from the interaction of charged articles, such as electrons or protons
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static charge (static electricity)
an electric charge that tends to stay on the surface of an object, rather than flowing away quickly
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charging by friction
a process in which objects made from different materials rub against each other, producing a net static charge on each object
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electrostatic series
- a list of materials that have been arranged according to their ability to hold on to electrons
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insulator
a material in which electrons cannot move easily from one atom to another
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conductor
- a material in which electrons can move easily between atoms
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semiconductor
- a material in which electrons can move fairly well between atoms
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ground
- an object that can supply a very large number of electrons to, or can remove a very large number of electrons from, a charged object, thus neutralizing that object
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electroscope
- a device for detecting the presence of an electric charge
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charging by contact
- generating a net charge on a neutral object by touching it with a charged object
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laws of electric charges
- laws that describe how two objects interact electrically when one or both are charged
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electric field
- a property of the space around a charged object, where the effect of its charge can be felt by other objects
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induced charge seperation
- the movement of electrons in a substance, caused by the electric field of a nearby charged object that is not in direct contact with the substance
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ion
- a positively or negatively charged atom or group of atoms
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lighting rod
- a metal sphere or point that is attached to the highest part of a building and connected to ground
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electrostatic precipitator
- a type of cleaner that removes unwanted particles and liquid droplets from a flow of gas
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Van De Graaff generator
- a device that accumulates very large charges
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radiation dosimeter
- a small device that detects and measures exposure to radiation
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