Are you tense?
I read this question in a book and was debating if it was a correct usage of the verb 'tense'. I believe the correct usage should be
Are you tensed?
Am I right about this?
Yes, tense is the correct form of this adjective (state of being)
OED 2.2 fig. In a state of nervous or mental strain or tension; strained; highly strung; ‘on the stretch’; excited, or excitable; keenly sensitive.