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 1000kg. A mouse has a mass ofsqxxn6 7hb;c * 10g. What is thez 6g m doutt97 8k7dao/31 g9g/wd mnsv2bheq2 order of magnitude of the ratiosb u6z237 wan2evdgg kmhqot 9 do/187d 9tm/g between 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 converted to grams first, by mul p)5rp2bfl 27(lol,zxw mhvo+tiplying by 1000 . The ratio is the mass of the car divided by the mass of+fh(llp 7rzo)xo22v5 wbmp,l 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