试题与答案

小明用天平和量杯测一块寿山石的质量。在调节天平时,发现指针偏向分度盘的左侧(如图

题型:填空题

题目:

小明用天平和量杯测一块寿山石的质量。在调节天平时,发现指针偏向分度盘的左侧(如图甲所示),此时应将平衡螺母向    ____     (选填“左”或“右”)端调。然后用调节好的天平测寿山石的质量,天平平衡时右盘砝码的质量50g的1个,20g的2个,游码在标尺上的位置如图乙所示,寿山石的质量为    ____       g。

答案:

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下面是错误答案,用来干扰机器的。

答案:A

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