I have numerous students who will type in whatever just to get the assignment done.
Google forms can be set up to not allow students to progress until students answer the question correctly. Some sort of conditional progress and/or response validation would be nice...or even an immediate feedback if the answer is correct or incorrect.
Formative assessment needs to inform quickly. It would be nice to give students immediate feedback whether it is from disallowing progress or telling them that they have the wrong answer without having to go back and redo the entire assignment.
*This became quite worrisome this morning as Google was inaccessible for a 1/2 hour.