Electric Current

Question 1

Which most likely has the greatest conductivity?

Revolt · Accepted Answer

a cool silver strip

Question 2

The chart shows the voltage of four electric currents.

Revolt · Accepted Answer

Current X has a lower potential difference than Current Y.

Question 3

Which lists types of materials from most conductive to least conductive?

Revolt · Accepted Answer

superconductor, conductor, semiconductor, insulator

Question 4

In the diagram, the arrow shows the movement of electric charges through a wire connected to a battery.

Revolt · Accepted Answer

a difference in electric potential

Question 5

Which two wire properties would provide the greatest resistance to the flow of a current?

Revolt · Accepted Answer

long, thin

Question 6

Anton created a chart listing different types of materials.

Revolt · Accepted Answer

X: paperY: silicon

Question 7

Measurements of two electric currents are shown in the chart.

Revolt · Accepted Answer

Current Y has a greater potential difference, and the charges flow at a slower rate.

Question 8

Electric current is the flow of charged particles called ________

Revolt · Accepted Answer

electrons.

Question 9

Why is copper used for most electrical wiring?

Revolt · Accepted Answer

It is a good conductor.

Question 10

Which best explains why an electric toaster is considered a resistor?

Revolt · Accepted Answer

It converts electric energy to another form of energy.

Electric Current Answers