P.E. vs magnetic energy

P.E. and magnetic energy both are nouns.

Word	Noun	Adjective	Verb	Adverb
P.E.	Yes	No	No	No
magnetic energy	Yes	No	No	No

As nouns, magnetic energy is a hyponym of P.E.; that is, magnetic energy is a word with a more specific, narrower meaning than P.E.:

P.E.: the mechanical energy that a body has by virtue of its position; stored energy
magnetic energy: (physics) the potential energy of a magnetic field.

Other hyponyms of P.E. include elastic energy, elastic potential energy.

P.E. (noun)	magnetic energy (noun)
the mechanical energy that a body has by virtue of its position; stored energy	(physics) the potential energy of a magnetic field.