moral sense vs morals

moral sense and morals both are nouns.

Word	Noun	Adjective	Verb	Adverb
moral sense	Yes	No	No	No
morals	Yes	No	No	No

As nouns, morals is a hypernym of moral sense; that is, morals is a word with a broader meaning than moral sense:

moral sense: motivation deriving logically from ethical or moral principles that govern a person's thoughts and actions
morals: motivation based on ideas of right and wrong

Other hypernyms of moral sense include ethical motive, ethics, morality.

moral sense (noun)	morals (noun)
motivation deriving logically from ethical or moral principles that govern a person's thoughts and actions	motivation based on ideas of right and wrong