Mini-Quiz: Electric Flow in a Vacuum

1. What is a beam of moving electrons called?

   Electrons can't moveSorry, not correct. Try another button. DC currentGood try, but not right. Select another answer. A cathode rayThat is correct. You know electricty.

2. How do electrons create light in a fluorescent lamp?

   They strike Xenon atoms that then emit lightCorrect. You understand the material. The electrons glow in the darkOops! Wrong answer. Re-read the question and try again. The atoms move the electronsSorry, not correct. Try another button.

3. What do a solar flares do?

   They are the source of sunlightSorry, not correct. Try another button. They emit charged particles into spaceThat is correct. You know electricty. No one knows for sureGood try, but not right. Select another answer.

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