<p>Is it possible to be a physics major undergrad then majoring in mechanical engineering in grad school?</p>
<p>It’s possible, but you would have to attempt some sort of ‘minor’ in MechE or at least take some ME classes as your electives. Otherwise, you’d have to register as a special student/postbachaleurette student before being a graduate student. It would also depend on the university.</p>
<p>What you want to do is survey a few possible ME grad programs and look for the minimum requirements for non-ME majors…and take those courses in your Physics program as electives.</p>