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21 Cards in this Set
- Front
- Back
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law of electrical energy
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states that like charges repel and opposite charges attract
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electric force
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force between charged objects
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conduction
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when electrons are transferred from 1 object to another by direct contace
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induction
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charges in an uncharged obj. are rearranged w/o direct contact
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conductor
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material in which charges can move easily
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insulator
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material in which charges cant easily move
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static electricity
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build up of electric charges
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electric discharge
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loss of static electricity as charges move off an object
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cell
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device that produces an electric current by converting chem. energy into electrical
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battery
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also converts chem. energy into elec. energy and is made of several cells
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potential difference
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the energy per unit charge
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photocell
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part of a solar panel that converts light into elec. energy
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thermocouple
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thermal into elec. energy
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current
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rate at which charge passes at a given point
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voltage
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diff. in energy unit charge moves between 2 points in a path
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resistance
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opposition to flow of electric charge
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electric power
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rate at which elec. energy is used to do work
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circuit
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complete closed path through which elec. charges flow
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load
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device uses elec. energy to do work
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series circuit
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circuit in which all parts are connected in a single loop
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parallel circuit
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different loads located on seperate branches
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