磁铁具有吸引铁、钴、镍等物质的性质,小蕊和小昌想探究磁体对回形针的吸引力的大小与放入它们之间物体的哪些因素有关,请你参与探究并解决问题。实验步骤:1.如图1所示,保持磁体和纸片间的距离一定,在纸片上放不同的物体时,通过比较纸片下面能吸附的回形针数量,显示磁体对回形针吸引力的大小。回形针的放置有图2中的甲、乙两种方法,依据二力平衡的原理,回形针 Magnets have the properties of attracting iron, cobalt, nickel, and so on. Noboru and Xiaochang want to find out the attractiveness of the magnet to the paperclip and the factors that put the object between them. Involve you in exploring and solving the problem. Experimental steps: 1. As shown in Figure 1, keep the magnet and the distance between the paper, put different objects on the paper, by comparing the number of paper clips can be adsorbed under the number shows the size of magnet attraction on the paperclip. Paper clip placed in Figure 2 in A, B two methods, based on the principle of two-force balance, paper clips