( ( Covers ( ( ( ( ( ( ( ( heat , ) light ) , ) ( atomic ( and ( nuclear physics ) ) ) ) , ) ( quantum mechanics ) ) and ) ( special relativity ) ) ) . )
(ROOT (NP (NP (NNS Covers)) (NP (NP (NN heat)) (, ,) (NP (NN light)) (, ,) (NP (JJ atomic) (CC and) (JJ nuclear) (NNS physics)) (, ,) (NP (NN quantum) (NNS mechanics)) (CC and) (NP (JJ special) (NN relativity))) (. .)))
Covers heat, light, atomic and nuclear physics, quantum mechanics and special relativity.
(ROOT (S (NP (NP (DT The) (JJ specialized) (NN study)) (PP (IN of) (NP (NP (DT the) (NN motion)) (PP (IN of) (NP (NP (NNS objects)) (SBAR (WHNP (WDT that)) (S (VP (VBP are) (ADJP (JJ atomic/subatomic) (PP (IN in) (NP (NN size)))))))))))) (VP (VBZ is) (VP (VBN called) (NP (NN quantum) (NNS mechanics)))) (. .)))
The specialized study of the motion of objects that are atomic/subatomic in size is called quantum mechanics.