Power Source Chooser

Run the Power Source Chooser MicroSim Fullscreen

About This MicroSim

This interactive infographic helps learners choose among four common project power sources by comparing voltage, current capability, portability, runtime, rechargeability, and safety.

How to Use

1. In Explore mode, click a column—or focus it with the keyboard and press Enter—to reveal a description and selection guidance.
2. Select Quiz Me and answer each use-case question by choosing the matching image.
3. Compare at least two columns and explain which visible and electrical differences matter most.

Compared Items

1. USB wall adapter
2. 9 V battery
3. Four-AA battery pack
4. LiPo pouch cell

Lesson Plan

Grade Level

Grades 6–10; beginning electronics

Duration

10–15 minutes

Learning Objective

Students will select a suitable source by balancing load current, voltage, portability, runtime, charging, and safety.

Activities

1. Explore: Inspect each column and identify a visible clue.
2. Compare: Contrast two choices using the detail panel.
3. Apply: Complete the quiz and justify each selection aloud or in writing.

Assessment

Present four project loads—a desk sensor, low-current alarm, small robot, and wearable—and require a justified source choice.

References

1. Chapter 22, “Power Supplies and Regulation,” in this textbook.