( ( ( Electromagnetic waves ) ( -LRB- ( ( ( X-rays , ) ( light ( , ( radio ( , ( radar ( and ( TV waves ) ) ) ) ) ) ) ) -RRB- ) ) ) ( ( are ( examples ( of ( ( transverse waves ) ( ( formed ( by ( electric ( and ( magnetic fields ) ) ) ) ) ( ( ( vibrating together ) ( at ( right angles ) ) ) ( to ( ( the ( wave 's ) ) motion ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (JJ Electromagnetic) (NNS waves)) (PRN (-LRB- -LRB-) (NP (NP (NNS X-rays)) (, ,) (NP (NN light) (, ,) (NN radio) (, ,) (NN radar) (CC and) (NN TV) (NNS waves))) (-RRB- -RRB-))) (VP (VBP are) (NP (NP (NNS examples)) (PP (IN of) (NP (NP (JJ transverse) (NNS waves)) (VP (VBN formed) (PP (IN by) (NP (JJ electric) (CC and) (JJ magnetic) (NNS fields))) (S (VP (VBG vibrating) (PRT (RP together)) (PP (IN at) (NP (JJ right) (NNS angles))) (PP (TO to) (NP (NP (DT the) (NN wave) (POS 's)) (NN motion)))))))))) (. .)))
Electromagnetic waves (X-rays, light, radio, radar and TV waves) are examples of transverse waves formed by electric and magnetic fields vibrating together at right angles to the wave's motion.
(ROOT (S (SBAR (IN Because) (S (NP (NP (DT the) (NNS fields)) (SBAR (WHNP (WDT that)) (S (VP (VBP make) (PRT (RP up)) (NP (DT an) (JJ electromagnetic) (NN wave)))))) (VP (VBP are) (PP (IN at) (NP (NP (JJ right) (NNS angles)) (PP (PP (TO to) (NP (DT each) (JJ other))) (CC and) (PP (TO to) (NP (DT the) (NN direction)))))) (SBAR (IN that) (S (NP (DT the) (NN wave)) (VP (VBZ travels))))))) (, ,) (NP (DT an) (JJ electromagnetic) (NN wave)) (VP (VBZ is) (VP (VBN considered) (S (NP (DT a) (-LRB- -LRB-) (NN n) (-RRB- -RRB-) (NN transverse) (NN wave))))) (. .)))