I just bought some pretty cool wheels and motors for my future mobot!! I'm gonna make it some time next week. I hope I can do it.
https://www.youtube.com/watch?v=eNfOZKkAUlo
https://www.youtube.com/watch?v=eNfOZKkAUloSeems your exam is done, how
Seems your exam is done, how did it go?
As a suggestion, do not use those 9V batteries to power motors. They will deplete very fast or even not power the motors at all if there are still other power consuming devices in the circuit.