The proper way to write this job title is in lower case: physical therapist. While some job titles are capitalized when put with the name of the person, such as President Obama. most are not. The title of physical therapist is always written in lower case.
Yes
Yes
Dodgeball is capitalized if it starts the sentence. But if dodgeball is used in the middle of a sentence it is not capitalized.
No it shouldn't be capitalized.
No, "methadone" should not be capitalized unless it is at the beginning of a sentence or part of a proper noun (such as a specific brand name).
No it shouldn't be capitalized.
Yes, "Middle Ages" should be capitalized when referring to that specific historical period, as it is a proper noun.
No, "secondary students" should not be capitalized in the middle of a sentence unless it is a proper noun or at the beginning of a sentence.
no
Yes.
No it shouldn't be capitalized.
No, "sister" is not capitalized in the middle of a sentence unless it is used as part of the name or title that is capitalized. For example, in "I have a younger sister," "sister" would not be capitalized.
No, "narwhal whale" does not need to be capitalized in the middle of a sentence unless it is part of a proper noun or title.
Yes, "Heaven" should be capitalized in the middle of a sentence as it is a proper noun when referring to the place considered to be the dwelling of God and the angels in many religious traditions.