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electricity chapter7

QuestionAnswer
Current is almost always the flow of electrons
What lists the watts required to operate an appliance? power rating
A car battery is an example of what? wet cell
A closed path through which electrons can flow is what? a circuit
One thousand watts of power used in 60 minutes is what? 1 kilowatt-hour
Electrical power is equal to power x what? time
A current has two or more branches in a what? parrallel circuit
Current has only one loop to flow through in a what? series circuit
Ohm's law states that the current equals voltage difference divided by the what? resistance
Thin wires have a greater resistance to electron flow than do what? thicker wires
Electrical power is equal to current x what? voltage difference
A fuse will melt if the current in a circuit becomes what? too high
The tendency for a material to oppose the flow of electrons is called what? resistance
Current is measured in what? amperes
A dry cell is used in a flashlight to convert electrical energy to what? light
The symbol V stands for what? volts
That which can open or close a circuit is a what? switch
What is measured in volts? voltage difference
What is a material that allows electron to flow through it? conductor
Transferring charge by touching is charging by what? contact
The unit of electric energy is the kilowatt-? hour
What is a device that detects electric charges? electroscope
What is a metal rod that directs lightning to earth? lightning rod
What is the accumulation of electric charges on an object? static electricity
Current is equal to the voltage difference of a circuit divided by its resistance Ohm's Law
What surrounds electric charge and exerts force on other charges? electric field
What does not allow electricity to move through it easily? insulator
what is a closed path through which electrons flow? circuit
A car battery is a example of what? wet cell
What is the rate at which electrical energy is changed to another energy form? electric power
Created by: haileyaderholt
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