题干

为了比较两种不同液体的密度大小,现有器材如下:

⑴托盘天平(已调节平衡,不含砝码)

⑵弹簧测力计

⑶刻度尺

⑷两个相同的烧杯

⑸拴着细线的物块A(密度大于两种液体)

⑹正方体物块B(密度小于两种液体).请写出两种方法比较液体密度大小所需器材的组合.(填序号)

方法一:两种液体及____方法二:两种液体及____

上一题 下一题 0.0难度 选择题 更新时间:2019-08-22 12:44:12

答案(点此获取答案解析)

(1)(3)(4),(4)(6)

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