We are investigating the transfer of students’ learning as they learn about applying physics to medical imaging. Many diagnostic devices used by physicians have their technological foundation in contemporary physics. To understand techniques such as magnetic resonance imaging (MRI) and positron emission tomography (PET), students require knowledge of nuclear and quantum physics and must also transfer learning from classical physics or everyday life to these medical applications. Our present research investigates this transfer of learning and its application to understanding both the medical techniques and some classical analogs.