location vs physical object

location and physical object both are nouns.

Word	Noun	Adjective	Verb	Adverb
location	Yes	No	No	No
physical object	Yes	No	No	No

As nouns, physical object is a hypernym of location; that is, physical object is a word with a broader meaning than location:

location: a point or extent in space; a point or extent in space
physical object: a tangible and visible entity; an entity that can cast a shadow

Other hypernyms of location include object.

location (noun)	physical object (noun)
a point or extent in space; a point or extent in space	a tangible and visible entity; an entity that can cast a shadow
a determination of the place where something is
the act of putting something in a certain place
a workplace away from a studio at which some or all of a movie may be made