Physics Chapter 20: Static electricity Textbook – Flashcards
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the study of electric charges that can be collected and held in one place.
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Electrostatics
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When the positive charge of the nucleus equals the negative charge of the surrounding electrons in an atom.
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Neutral
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A material through which a charge will not move easily.
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Insulator
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A material that allows charges to move about easily.
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Conductor
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A device that is used to detect electric charges and consists of a metal knob connected by a metal stem to two thin metal leaves.
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Electroscope
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Charging a neutral body by touching it with a charged body.
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Charging by conduction
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Charging a body without touching it.
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Charging by induction
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The process of connecting a body to Earth to eliminate excess charge.
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Grounding
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The magnitude of the force between charge q₁ and charge q₂, separated by a distance r, is proportional to the magnitude of the charges and inversely proportional to the square of the distance between them.
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Coulomb's Law
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The SI standard unit of charge
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Coulomb
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The magnitude of the charge of an electron.
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Elementary Charge
