Google has added on quiz form to Google Forms. It is outstanding for multiple choice and true/false questions (you still will need to grade open-ended separately - Flubaroo is an option).
The site provides the standard "flashcard-type" studying (with the ability to star cards that need to be reviewed) as well as fun games (such as all terms scattered and users must match the terms quickly and an asteroid game) for the users to try. It also gives the user the ability to create a test from the group of terms and definitions.
If you would like a detailed 6 minute video I created - click here (or see the video embedded below). Unfortunately, the helpful annotations will not appear on a mobile phone. I hope in the future they will be.
If you would like a fast-forwarded version of the same video above - but in 1 minute - click here (or see embedded video below).
If you want to make an easy online multiple choice quiz try https://www.quizzy.rocks. While the site does not store data for the users - it does mark the quiz instantly. I used it this year in a 1st grade classroom and the students showed the 1st grade teacher and myself their results. The students also had the chance to re-take the quiz.