La̍t-thâu chiàu bu̍t-lí ê ha̍k-būn sī chò kang ê lêng-le̍k. Hêng-sek thang sī bī-hoat (potential), tōng-chok (kinetic), sio-jia̍t (thermal), tiān-khì (electrical), he̍k-chú (nuclear) téng-téng.
