Unit Test — Unit test Answers

Linus builds an electrical circuit with a battery and with wires that carry the current. As the battery weakens, the current also weakens.

Mateo drew the field lines around the ends of two bar magnets but forgot to label the direction of the lines with arrows.

Jill uses a magnet to pick up a nail. Then, she touches the nail to a paper clip and picks up the paper clip. What will most likely happen when she pulls the magnet away from the nail?

A compass taken to Earth’s moon does not point in a specific direction on the moon. What is the most likely reason for the difference between how the compass works on Earth and on the moon?

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