This must be considered in making out student schedules. This means a full time load of 15 credit hours typically requires a total time commitment of 40 - 45 hours per week. This time requirement is typical for physics classes and science classes in general. You may need to spend more time, however. There is no extra credit.
Exams are closed book and notes, calculators maybe restricted as well.
The exam dates are set. Typically, the material for an exam will be completed one week before the exam. There are no make up exams unless I decide your reason for missing is acceptable. If you miss an exam, you get a zero. The final exam count as two tests.