物理SAT一道If value of an object is tripled,its kinetic energy i

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物理SAT一道
If value of an object is tripled,its kinetic energy is___ times its original value.
value在这里指什么?

光看这个还真看不出来,要联系上下文,value并没有单独指质量或速度的意思.
这道题的问题是,如果一个物体的某个值变成了原来的三倍,那么它的动能是原来的几倍?
根据E=1/2*m*v^2
如果value是速度的话,答案是9
如果value是质量的话,答案是3
再问：没有上下文,解析中直接value等同于speed,所以会不会value有volecity的意思?
再答：这个我不敢确定。但是因为它是考题，可能考虑到这点，要考察动能方程，所以表示速度的可能性比较大，质量的话就没多大意义。应试考试嘛，要往这方面想！

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