Ross put in 22 points and grabbed eight boards. Thomas supplied 14 and eight.
Sam Thompson also reached double figures with 10 points for the Buckeyes (5-1), who bounced back from a Wednesday loss to Duke.
The Norse (0-5) got 11 points and nine rebounds from Jalen Billups but managed only 27.1 percent shooting from the field.
Swim Week Miami Beach 2014 [PHOTOS]