measuring instrument that detects electric charge, a device containing two suspended metal leaves in a jar that move apart when charged; used to detect the presence of electric charges
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electrometer
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meter to measure electrostatic voltage differences
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Coulomb
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the SI unit for charge
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conductors
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Materials that allow electric charges to flow through them.
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elementary charge
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the smallest unit of electric charge that is possible in ordinary matter., The charge on one proton. The negative is the charge on one electron. Equivalent to 1.60 x 10^-19 C
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grounded symbol physics
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charge by conduction
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a meathod of charging an object by allowing electrons to flow by direct contact from one object to another
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Coulomb's law
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Any two charged objects will create a force on each other. Opposite charges will produce an attractive force while similar charges will produce a repulsive force. The greater the charges, the greater the force. The greater the distance between them, the smaller the force.
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semi conductor
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element that does not conduct electricity as well as metal but conducts better that a nonmetal, metalloid
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electricity
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energy made available by the flow of electric charge through a conductor
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Columb's law
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The greater the charges, the more force. F=k(q1q2)/(d^2)
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polar
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describes a molecule with opposite charges on opposite ends
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insulators
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materials that prevent electric charges from flowing through them easily
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conservation of electricity
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the principle that the total electric charge of a system remains constant despite changes inside the system
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grounded
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Allowing charges to flow directly from the circuit into Earth in the event of a short circuit
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static electricity
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electricity produced by friction, The buildup of electric charges on an object, A stationary electrical charge that is built up on the surface of a material, old name amber effect