physics is the study of what
Physics (from Ancient Greek: ÏÏÏÎ¹ÎºÎ® (á¼ÏÎ¹ÏÏÎ®Î¼Î·) phusiká¸ (epistá¸mÄ) knowledge of nature, from ÏÏÏÎ¹Ï phÃºsis nature) is the natural science that involves the study of matter and its motion and behavior through space and time, along with related concepts such as energy and force.