Hi! I'm the recruitment rep for the medical physics undergraduate program and here are some answers to your questions. I did my undergrad in medical physics here at Mac and I am now doing a PhD in medical physics.
Here's a link to the program:
http://www.science.mcmaster. ca/med...urriculum.html
The program contains core math and physics courses but you also take anatomy and biology courses so if you are good at math and physics but are also interested in health science, this would be a good option for you. In the later part of the program, you take medical physics specific courses where you learn about medical imaging (CT, PET, MRI), radiation biology, cancer therapy, radioisotopes etc.
Students do successfully go onto medical school after this program. If you are interested in radiology or radiation oncology as a medical specialization, medical physics would provide you with an excellent background. A large number of students generally go onto graduate school to do research. Many students with graduate degrees in medical physics will then become clinical medical physicists at a cancer center where they design treatment plans for patients undergoing radiation therapy and test new treatment systems.
It is also possible to obtain employment in the nuclear industry as a health physicist with this degree. You would work to protect employees working at a nuclear power station from radiation exposure.
This undergrad program comes with a coop option so that you can try out these potential career paths over an 8 month placement and make money! Its a great way to gain experience for whatever you choose to do next.
Hope that helps! Good luck!