periodic movement vs periodic motion

periodic movement and periodic motion both are nouns.

Word	Noun	Adjective	Verb	Adverb
periodic movement	Yes	No	No	No
periodic motion	Yes	No	No	No

As nouns, periodic movement and periodic motion are synonyms defined as:

periodic movement and periodic motion: motion that recurs over and over and the period of time required for each recurrence remains the same

periodic movement (noun)	periodic motion (noun)
motion that recurs over and over and the period of time required for each recurrence remains the same	motion that recurs over and over and the period of time required for each recurrence remains the same