2b Answer Chapter 9 - New Mastering Science Workbook

For the next hour, Lin Mei didn’t just copy answers. The glowing circuits taught her. Question 4 showed her how voltage splits in a series circuit. Question 5 made her rearrange the parallel branches herself until the current flowed correctly. Question 6—a terrifying mess of three batteries and five resistors—demanded she use Kirchhoff’s Laws, which she hadn’t even learned yet. The book whispered the rules, and she solved it.

Lin Mei flinched. The pages riffled on their own, stopping at Chapter 9. The diagram of the circuit began to glow—a soft, copper-colored light. The lines of the wires shimmered, and then, impossibly, the schematic moved . Electrons, drawn as tiny blue dots, began to flow from the negative terminal of the battery, down the wire, through the lightbulb… and then they stopped at the empty space where the missing resistor should be. New Mastering Science Workbook 2b Answer Chapter 9

“The answer is in the question. Ask the book.” For the next hour, Lin Mei didn’t just copy answers

A whisper, like the static between radio stations, filled the room. “Complete the circuit.” Question 5 made her rearrange the parallel branches

And below them, a new sentence: “Now that you understand, help the next student. Pass the code: 9-4-15-6.”