affect vs impact

affect and impact both are nouns.

Word	Noun	Adjective	Verb	Adverb
affect	Yes	No	Yes	No
impact	Yes	No	Yes	No

As verbs, affect and impact are synonyms defined as:

Other synonyms of affect include bear on, bear upon, touch, touch on.

affect (noun)	impact (noun)
the conscious subjective aspect of feeling or emotion	influencing strongly
	the violent interaction of individuals or groups entering into combat
	the striking of one body against another
	a forceful consequence; a strong effect

affect (verb)	impact (verb)
act physically on; have an effect upon	have an effect upon
have an effect upon	press or wedge together; pack together
make believe with the intent to deceive
have an emotional or cognitive impact upon
connect closely and often incriminatingly