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 1000kg. A mouse haq 3:xud-;hqlbj ps h30tx/r: xs a mass of h,gva-gc; /ivlh/j8cjb4b q/ 10g. What is the order of magnitude of the ratio betweh hcb ji8g4v c/b, g;v/lqa-/jen 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 mu/74yoe( og 6xctg6wcl+kz)nhst be converted to grams first, by multiplying by 1000 . The ratio is the mass of the car 6n4 +l7(6xow/gk hogyc)t ezc divided by the mass of the mouse: $$ \frac{1000 \times 1000}{10}=100000 $$ As $100000=10^5$, the order of magnitude is 5 .