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Calvert St Gd Ch 7

QuestionAnswer
The presence of a static electric charge can be detected by an? Electroscope
A lightning bolt occurs when billion of these are transferred at the same time? Electrons
The rearrangement of electrons on a neutral object caused by a nearby charged object is called? Induction
Voltage difference is measured in what unit? Volts
The unit used to measure current is? amps
Opposite charges attract or repel? attract
Type of material that does not allow electrons to flow easily? Insulators
Device used to keep electrical circuits from overheating Fuse
The unit for electrical energy is the kilowatt-hour
Current is equal to the voltage difference divided by the resistance is what law? Ohm's law
Electric charge that has accumulated on an object is referred to as? static electricity
A circuit that has two or more branches for electrons to flow is a parallel circuit
The rate at which an electrical device converts energy from one form to another is called? electrical power
A large discharge of static electricity is? lightning
A device designed to open an overloaded circuit and prevent overheating is a? circuit breaker
Resistance is measured in what unit? ohm
Protons have what type of charge? positive
Current is usually the flow of? electrons
A path that allows only one route for an electric current is called a? series circuit
Electric current is measured in what units? Amperes
What can open or close a circuit? switch
The process of transferring charge by touching? charging by contact
A car battery is an example of what type of battery? wet cell
"I" is the symbol for what? current
Type of metal that is often used in wire to conduct electricity? copper
The process of connecting an object to earth with a conductor? grounding
This lists the watts required to operate an appliance? power rating
Created by: bcalvert
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