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20 Cards in this Set
- Front
- Back
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OHM is the unit of electric __________
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resistance
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Watt is a measure of how much electrical energy is being ________
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used
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What is the two forms of electric current?
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AC (alternating current) & DC (direct current)
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Amp or ampere is the unit of electric _______________
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Strength
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Volt is the unit of electric __________
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Pressure
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What electrons move at an even rate and flow only in one direction?
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DC (direct current)
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What electron flows first in one direction and then in the other?
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AC (alternating current)
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What are 2 sources of electric current?
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Generator and batteries
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What is load?
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Electrically powered appliance
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Fires occur when?
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When an extension cord with multiple plugs is used to attach 4 or more appliances into one wall socket
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Material that does NOT allow a current to pass through is ___________
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insulators
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Material that best transports electricity is _______
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Conductors
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Cords should always be keep straight and free of knots, kinks, and tangles to prevent _________
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breaks
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Path on which electrons leave the source and operate an appliance; switch is on
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Closed circuit
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Path of electron flow is broken; switch is off
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Open circuit
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_________ occurs when to many appliances on one circuit are being operated at the same time.
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Overload
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__________ passes through small parts of the body.
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Local shock
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_________ passes through the nervous system.
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General shock
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Human contact with an electric current causes a __________
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Shock
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If a fire results what do you NOT put on it?
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Water
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