本题目来源于试卷: gc physics textbook chapter 4 problems，类别为 通用国际物理
[问答题]
Would a spring scale carried to the Moaaknq +bf3 agro+q,eiue7)*e7y; 5vron give accurate results if the sca pawhi*5sy3 4jle had been calijpw* hy5i3as 4brated (a) in pounds, or (b) in kilograms?
参考答案: Only the pounds reading would be correct. The spring scale works on the fact that a certain force (the weight of the object being weighed) will stretch the spring a certain distance. That distance is proportional to the product of the mass and the acceleration due to gravity. Since the acceleration due to gravity is smaller by a factor of 6 on the moon, the weight of the object is smaller by a factor of 6, and the spring will be pulled to only one-sixth of the distance that it was pulled on the Earth. The mass itself doesn’t change when moving to the Moon, and so a mass reading on the Moon would be incorrect.
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