Mini-Quiz: Thomas Edison: Years after Age 40

1. Why did Edison insist on using DC electricity?

   He knew it was superior to ACGood try, but not right. Select another answer. He had invested much money in the projectCorrect answer. You know about Thomas Edison's work. He wanted to be different than TeslaSorry, not correct. Try another button.

2. What entertainment inventions did Edison create?

   Phonograph and movie cameraThat's correct. You are improving every day. Light bulb and dry cell batteryOops! Wrong answer. Re-read the question and try again. Telephone and televisionSorry, not correct. Try another button.

3. Why did Edison refuse the Nobel Prize?

   He was a pacifist and against warGood try, but not right. Select another answer. His did not want to give his rival Tesla creditCorrect answer. You know about Thomas Edison's work. He feared speaking to large crowdsOops! Wrong answer. Re-read the question and try again.

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