The question which begs to be asked is, why did Kyle put his physics project on the 'net right next to his biology project?  Did he think Mr. Robinson was going to give him extra points (though that definitely wouldn't be a bad thing, I think we can all agree -- in fact, it might even give Mr. Robinson some positive karma, and that could only help everyone) for doing extra work?

Where do the two projects intersect?

(Besides the same .gif used for the backgrounds.)

You can guess at it,  or you can research it, and then guess at it, or you can go here for the answer.