本题目来源于试卷: Kognity IB Physics A.0 Measurements & Uncertainty，类别为 IBDP Physics
[单选题]
A car has a mass of 100 5f/dcypuodli(0h 1q00kg. A mouse has a mass of 10g. What is the order of cte0-j6qzk3s0y h9z f;z-c+gq8m hxvmagnitude of the ratio bet0hxv 9z c8zg3h-z0tj - ecyq6mfs+q;k ween the mass of the car to that of the mouse?
A. -5
B. 5
C. $10^{-5}$
D. 100000
参考答案: B
本题详细解析:
The mass of the car must be converted3ty .ovwho:5d to grams first, by multiplying by 1000 . The ratio is the :. t3vhod5oyw mass of the car divided by the mass of the mouse: $$ \frac{1000 \times 1000}{10}=100000 $$ As $100000=10^5$, the order of magnitude is 5 .
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Post time 2024-8-21 21:17:15