What term is used to describe how much an object weighs

Ijust want the meaning to life (no wrong or right answers i just want your true opinion)

Which term defines one's age as measured by how well the body is working? chronological age biological age social age mental age

You are assessing an 86-year-old postoperative patient who has an unexpressive, stoic demeanor. when you enter the room, the patient is curled into the fetal position and your assessment reveals that his vital signs are elevated and he is diaphoretic. you ask the patient what his pain level is on a 0-to-10 scale that you explained to the patient prior to surgery. the patient indicates a pain level of “three or so.” you review your pain-management orders and find that all medications are ordered prn. how would you treat this patient's pain?