✔ 最佳答案
磁力是磁性力量.也可以講成非接觸力
當磁性為"N"+"N"時 磁力為負 並將會相距
當磁性為"N"+"S"時 磁力為正 並將會相吸
當磁性為"S"+"S"時 磁力為負 並將會相距
而帶有磁性的物質 分別是"S"和"N"時 把它們分開 便會出現四個磁性在兩個物質上
如果合併 必須將第二件物質"上下反轉"後才會相吸 否則將會相距
你用英文講,我就用英文答
(i use english to answer your question when you use english to ask )
Potential energy is the energy that is by virtue of the relative positions (configurations) of the objects within a physical system. This form of energy has the potential to change the state of other objects around it.