What's the difference between 새롭다 and 새?

Question

Answer

Refer to http://www.italki.com/question/263269

새로운 used for describing something which make someone feel fresh. 
antonym is 오래된(antique,aged)

새 used for describing something which is newly made and nobody used it before.
antonym is 헌(used,word out)

In short,
새로운 means "fresh new"
새 means "brand new"

Answer

if you know french, the distinction is exactly parallel to "neuf" versus "nouveau".  Two words that are translated into english as "new" but they are different.