Fahimtar Zafin Jiki da Zafi
Zafin jiki . Manufar zafin jiki a zahiri ta samo asali ne daga jin zafi da sanyi da muke ji a fuskar taɓawa. Dangane da yadda motsinmu na taɓawa yake ji, muna cewa abu ya fi wani abu zafi ko abu ya fi wani abu sanyi. Abubuwa masu zafi suna da zafi mafi girma yayin da abubuwa masu sanyi suna da ƙaramin zafin jiki. Mafi sanyin abu, mafi ƙarancin zafinsa. Akasin haka, mafi zafi abu, mafi girman zafinsa. Wannan ma'aunin zafi ko sanyin abu ana kiransa zafin jiki. A cikin batun ka'idar motsi na iskar gas wanda za a yi nazari a kai daga baya a aji na 11, za ku fahimci ma'anar zafin jiki sosai; abin da ke faruwa da ƙwayoyin da suka samar da wani abu wannan abu zai iya jin zafi, dumi, sanyi ko sanyi.
