aerodynamics vs mechanics

aerodynamics and mechanics both are nouns.

Word	Noun	Adjective	Verb	Adverb
aerodynamics	Yes	No	No	No
mechanics	Yes	No	No	No

As nouns, mechanics is a hypernym of aerodynamics; that is, mechanics is a word with a broader meaning than aerodynamics:

aerodynamics: the branch of mechanics that deals with the motion of gases (especially air) and their effects on bodies in the flow
mechanics: the branch of physics concerned with the motion of bodies in a frame of reference

aerodynamics (noun)	mechanics (noun)
the branch of mechanics that deals with the motion of gases (especially air) and their effects on bodies in the flow	the technical aspects of doing something
	the branch of physics concerned with the motion of bodies in a frame of reference