mechanics vs jerk

mechanics and jerk both are nouns.

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

mechanics (noun)	jerk (noun)
the technical aspects of doing something	an abrupt spasmodic movement
the branch of physics concerned with the motion of bodies in a frame of reference	a sudden abrupt pull
	raising a weight from shoulder height to above the head by straightening the arms
	meat (especially beef) cut in strips and dried in the sun
	a dull stupid fatuous person
	(mechanics) the rate of change of acceleration

mechanics (verb)	jerk (verb)
	make an uncontrolled, short, jerky motion
	throw or toss with a quick motion
	pull, or move with a sudden movement
	move with abrupt, seemingly uncontrolled motions
	jump vertically, with legs stiff and back arched