Mass: Amount of material , Measured in kilograms, Is the same for an object everywhere, Is not a force, Weight: Caused by gravity acting a mass, Measured in Newtons , Varies with how strong gravity is, Is a force, Acts towards the centre of the Earth (or other massive object),

Mass versus weight sort

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?