electrostatics vs physics

electrostatics and physics both are nouns.

Word	Noun	Adjective	Verb	Adverb
electrostatics	Yes	No	No	No
physics	Yes	No	No	No

As nouns, physics is a hypernym of electrostatics; that is, physics is a word with a broader meaning than electrostatics:

Other hypernyms of electrostatics include natural philosophy.

electrostatics (noun)	physics (noun)
the branch of physics that deals with static electricity	the science of matter and energy and their interactions
	the physical properties, phenomena, and laws of something