Kognity IB Physics A.0 Measurements & Uncertainty (id: a7f97d4b5)

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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 1hu1.9j6 r(;,ettfi zqkbis.d000kg. A mouse has a mass j1gg awebg09+nxn9 5nof 10g. What is the order of magnitude of the ratio between the mass of the car to that of the 1nnb9n5+0xg wgg9e aj 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 mwr *9(6 ( o7ehkapgk akmmmz*l8m 0)fmultiplying by 1000 . The ratio is the mass of the car divided by the mass of the m6g(kkp(zerkolm m 70m*h mwfa a9* )8mouse: $$ \frac{1000 \times 1000}{10}=100000 $$ As $100000=10^5$, the order of magnitude is 5 .