( ( Elastic ( potential energy ) ) ( ( is ( ( the ( potential energy ) ) ( of ( ( ( an ( elastic object ) ) ( -LRB- ( ( ( for example ) ( ( ( a bow ) or ) ( a catapult ) ) ) -RRB- ) ) ) ( that ( ( is ( deformed ( under ( ( tension or ) compression ) ) ) ) ( -LRB- ( or ( ( stressed ( in ( formal terminology ) ) ) -RRB- ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Elastic) (JJ potential) (NN energy)) (VP (VBZ is) (NP (NP (DT the) (JJ potential) (NN energy)) (PP (IN of) (NP (NP (DT an) (JJ elastic) (NN object)) (PRN (-LRB- -LRB-) (NP (PP (IN for) (NP (NN example))) (NP (NP (DT a) (NN bow)) (CC or) (NP (DT a) (NN catapult)))) (-RRB- -RRB-)) (SBAR (WHNP (WDT that)) (S (VP (VBZ is) (ADJP (VBN deformed) (PP (IN under) (NP (NN tension) (CC or) (NN compression)))) (PRN (-LRB- -LRB-) (CC or) (VP (VBN stressed) (PP (IN in) (NP (JJ formal) (NN terminology)))) (-RRB- -RRB-))))))))) (. .)))
Elastic potential energy is the potential energy of an elastic object (for example a bow or a catapult) that is deformed under tension or compression (or stressed in formal terminology).
(ROOT (S (NP (DT The) (ADJP (NN term) (JJ elastic)) (JJ potential) (NN energy)) (VP (VBZ is) (VP (VBN used) (S (VP (TO to) (VP (VB describe) (S (NP (JJ potential) (NN energy)) (ADJP (JJ due) (PP (TO to) (NP (NP (DT an) (NN object) (POS 's)) (NN shape)))))))))) (. .)))