QuizOperator is a free tool that let's you easely create and share quizzes. You just have to choose the quiz name and fill in the quiz options.
Other people can join your quiz by going to a link or by searching for it. The score is tracked by the app and the winner will be calculated automatically. Perfect to use during your lesson, presentation, speech or at a party.
This is a great interaction tool teachers and even parents can use to help keep their students focused on the video and lesson content. This would be a good alternative to use instead of having worksheets students have to follow.