Physics is a natural science. It is the branch that deals with studying and understanding matter and energy. Topics found in physics studies can include mechanics, calculus, electricity, magnetism, thermodynamics and optics.

Hong Kong is one of the two Special Administrative Regions of the People's Republic of China, the other being Macau.

The PhD is a doctoral degree, specifically called a "doctor of philosophy" degree. This is misleading because PhD holders are not necessarily philosophers (unless they earned their degree in philosophy!). That said, PhD recipients are able to engage in thought experiments, reason about problems, and solve problems in sophisticated ways.

Full time studies are studies that require a student to attend classes on a daily basis, usually for at least four hours a day. The main benefit of full time studies is that it allows students to complete their studies in a shorter period of time. This can be beneficial for those who are looking to graduate more quickly or enter the workforce sooner.