1问题的提出中学物理中,关于势能为零的参考点应该选在哪里,教材没有作出明确的说明,只是在涉及到机械能的有关问题时,对势能为零的参考点的选择以方便计算为原则,势能零点的选择也体现了其相对性的特点.因为从能量守恒和转化的过程来看,参考点的选择的任意性不会影响能量的转 1Problem raised in the middle school physics, reference points for zero potential energy should be selected where the teaching material did not make a clear explanation, but when it comes to the relevant issues of mechanical energy, the reference point for zero potential energy to facilitate the calculation of In principle, the choice of potential energy zero also reflects its relative characteristics. Because from the process of energy conservation and transformation, the arbitrariness of the selection of reference points does not affect the transfer of energy.