Unit Test — Unit test

Question 1

The diagram shows two charged objects, A and B.

Revolt · Accepted Answer

A: positiveB: negative

Question 2

Badri makes the table below to review the factors that affect the electric force between objects.

Revolt · Accepted Answer

changing “Mass” to “Amount of electric charge”

Question 3

Dr. Eriksson is working on a material called selenium. She is adding a certain number and type of atoms to the selenium, which will control its conductivity.

Revolt · Accepted Answer

semiconductor

Question 4

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 5

Oran wants to model the behavior of Earth’s magnetic field when Earth’s magnetic south is near Earth’s geographic north using a ball, a bar magnet, and a compass. He designates the top of the ball as Earth’s geographic north.

Revolt · Accepted Answer

Model 4

Unit Test — Unit test Answers

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