physics word bank - Current electricity the controlled flow of electrons through a conductor Electrical circuit a continuous path in which electrons can

physics word bank - Current electricity the controlled flow...

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Current electricity - the controlled flow of electrons through a conductor Electrical circuit - a continuous path in which electrons can flow Load - the part of an electrical circuit that converts electrical energy into other forms of energy Switch - a device in an electrical circuit that controls the flow of electrons by opening or closing the circuit Electrical energy - the energy provided by the flow of electrons in an electrical circuit Electric cell - a device that converts chemical energy into electrical energy. Primary cell - an electric cell that may be only used once Secondary cell - an electric cell that can be recharged Direct current - a flow of electrons in one direction through an electrical circuit Biomass - any biological material (including plants and animals) Photovoltaic cells - a device that converts light energy from any light source directly into electrical energy. Electrical power - the rate at which electrical energy is produced or used. Kilowatt•hour (kW•h)- the si unit for measuring electrical energy usage; the use of one kilowatt of
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Unformatted text preview: power for 1 hour. Circuit diagram - a way of drawing electrical circuit using standard symbols. Series circuits - a circuit in which the loads are connected end to end so that there is only one path for electrons to flows. Parallel circuits - a circuit in which the loads are connected by branches so that there are 2 or paths for electrons to flow. Electrical current (I) - a measure of the rate of electron flow past a given point in a circuit; measured in amperes Ammeter - a device used to measure electric current. Potential difference ( voltage (V) ) - the difference in electrical potential energy per unit charge measured at two different points; measured in volts (V) Electrical resistance ( R ) - the ability of a material to oppose the flow of electric current; measured in ohms ( ). Ω Ohmmeter - a device used to measure resistance Ohm’s law - the straight-line relationship between voltage and current; r equals v divided by i...
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