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What Makes It Move?
Crystal Sikkens
出版Crabtree Publishing Company, 2019
主題Science / Mechanics / Dynamics
ISBN14271235789781427123572
URLhttp://books.google.com.hk/books?id=6Sn_yQEACAAJ&hl=&source=gbs_api
註釋"Did you know that an object can only move if a force is placed on it? Read about pushing and pulling-the forces that make objects move-and what happens when you change the strength or direction of a force"--