1) Student Email Address: I always have the students input their student email address so I know who completes the form as well as having the ability to send them their grade on the assignment after I grade it using the add-on Flubaroo. I found it much easier to have their school domain already filled in for them using the pre-filled option. (How to create a pre-filled Google Form Blog Post.)
2) ID Number: I have the students submit their student ID numbers as a form of double verification.
3) Period Number: Because I teach multiple classes of Algebra 1 I need to organize the results by periods.
4) Embed the Video: For this school year I have made sure all of my videos are on YouTube so I can embed them into a Google Form. It is also much more useful for students since they can view YouTube videos on their mobile devices.
5) Link to the Video: There are times that the embedded video does not work on their mobile devices so I include the direct link to the video.
6) Image of the Question: Google Forms allow you to insert images into a form. Unfortunately you can not just copy and paste an image. You have to have the file saved on your computer as an image file to upload to the form. I usually just screen capture a few problems from worksheets and save those files. Useful apps for screen captures are Snipping tool, Skitch and PicPick. (Screenshots Made Easy Blog Post)
7) Multiple Choice Question: A large majority of the questions I have the students answer after the video are multiple choice questions. It makes grading and comparing the data easier.
8) Image of a Horizontal Line: Without inserting and image of a horizontal line it is hard to see what question corresponds to what multiple choice options. This is not really needed.
The morning after the assignment I grade it using Flubaroo, email the students their grades and use the Summary of responses within forms to guide the lesson for the day.