LOL that helps motivate the guy...
Goodluck IamBread
Sure he may well end up with a major in physics
But its too early to decide.
You have people dropping their majors left right and center in their last few years because they failed to do their research about job prospects or weren't interested in the subject.
So i argue, presuming his only in 1st year (1st semester even) that one course (the first physics course) and finding it somewhat interesting/ doing well in it does not constitutes good consideration for a major.
If he does i commend him for his pursuit of science, especially given the Australia's lack of investment in it.