Mini-Quiz: Basics of Electricity

1. How do electrons become free electrons?

   All electrons are freeSorry, not correct. Try another button. The electrons become ionizedGood try, but not right. Select another answer. They may be knocked from orbit by radiation effectsThat is correct. You know your electricity.

2. Why are some materials nonconductors of electricity?

   Their configuration inhibit the motion of free electronsCorrect. You're moving up in the world. They reject free electrons from their surfacesSorry, not correct. Try another button. No one knows for sureOops! Wrong answer. Re-read the question and try again.

3. How does electricity flow in a vacuum?

   Electrons or charged particles speed across space, usually toward an opposite chargeThat is correct. You know your electricity. You can easily change its voltageGood try, but not right. Select another answer. It goes in both directionsSorry, not correct. Try another button.

Pick an answer to see instant feedback. Re-read the lesson if you miss one.