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 ha, z yw9q08dstv(b-uxbyqyr+-e; ux:.n o.td rs a mass of 10g. What is the order of magnitude of the ratio between +brn(: ybtdu y-. q orux.-x;ethe 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 multiplyin7fw9ln uaz0nnf *io+8(j zcc 7g by 1000 . The ratio is the mass of the car f7 awn *o+7lcjz8n(fu0nc iz 9divided by the mass of the mouse: $$ \frac{1000 \times 1000}{10}=100000 $$ As $100000=10^5$, the order of magnitude is 5 .