Unit Test Answers

In order for electric charge to flow, there must be a difference in:

Which factors affect the flow of electric charge? Select two options.voltageampereohmresistancevolt

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Which materials are good insulators? Select three options.glasspapergoldplasticsilver

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Which factors affect the resistance of a material? Select three options.lengthcurrentthicknesstemperaturevoltage

Sara read in a book that in 1800, the Italian physicist Alessandro Volta observed that two metals connected by a conducting liquid produced a continuous transfer of electrons. This phenomenon was different from the rapid static discharge observed by Benjamin Franklin.Sara’s book was describing Volta’s observation of:

Which sequence lists types of materials in order from least conductive to most conductive?

The basic unit of electric current is the:

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