反発

1. Origins, structure, and basic meaning

• Structure: 反発 is read as はんぱつ and can mean human opposition or physical repulsion.
• Basic usage: It can describe members resisting a rule change or two magnets repelling each other.

2. Common pitfalls and similar expressions

• People expressing opposition
  • 変更に反発する means objecting to and resisting a sudden change. Example: 急な規則変更に多くの会員が反発しました。
• Objects repelling each other
  • 磁石が反発する describes the physical effect of two magnets pushing apart. Example: 二つの磁石が反発する様子を実験で確かめました。