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Question | Answer |
---|---|
a power rating lists the ___ required to operate an appliance | watts |
a fuse will melt if the _____ in a circuit becomes too high | current |
a current has two ormore branches in a ______ | parallel circuit |
the tendency for a material to oppose the flow of electrons is called _____ | resistance |
current is measured in _______ | amperes |
electrical power is equal to _______ x voltage sifference | current |
a dry cell is used in a flaxhlight to covert ____ to light | electrical energy |
one thousand watts of power used in 60 minutes is ___________ | 1 kilowatt-hour |
a closed path through which electrons can flow is __________ | a circuit |
current is almost always the flow of ______ | electrons |
a car battery ia an example of a _______ | wet cell |
current has only one loop to flow through in a ______ | series circuit |
electrical energy is equal to _____x Time | power |
ohm's law states that the current equals ______ divided by the resistance | voltage difference |
thin wires have a ______ resistance to electron flow than do thicker wires | greater |
circuit that has more than one path | parallel |
that which can open or close a circuit | switch |
_____ difference is measured in volts | voltage |
a flashlight battery is an example of a _______ | dry cell |
tendency for a material to oppose the flow of electrons | resistance |
units to measure the rate of electron flow | amperes |
electrical _____- is expressed in watts | power |
circuit that has only one path | series |
the symbol V stands for | volts |
the flow of current through wire is on ______ current | electric |
a material that allows electrons to move through it | conductor |
transferring charge by touching in charging by ____ | contact |
the unit of electric energy is the kilowatt-______ | hour |
metal rod that directs lightning to earth | lightning rod |
flashlight | dry cell |