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 100 zfb,on4:mbw2 0kg. A mouse has a mass of 109f2ril u sm87k1 7/d0x9cwiq(kmcfkag. What is the order of magnitude of the ratio bmk7q(9f7ka c s 8xfdlr9mu0 1ki2ic/w etween 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, ibggfxlyz6e (r/q* , grams first, by multiplying by 1000 . The ratio is the mass of the car divide r f*g(qe/bxilzy,,g6d by the mass of the mouse: $$ \frac{1000 \times 1000}{10}=100000 $$ As $100000=10^5$, the order of magnitude is 5 .