物理研究的问题通常称为"physical research questions"或"questions in physics." 具体而言，这些问题可能涉及物理学定律、现象、系统或概念的机制、边界条件、效应或其他方面的研究。例如，一个物理研究的问题可能是："What is the mechanism behind the expansion of the universe?" 或者："What are the boundary conditions that govern the behavior of black holes?" 或者："How do the properties of a material change at different temperatures and pressures?" 等等。