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 100sd4mdem1de.k ocfn,/y yr t1w . )tmiy*d+*h00kg. A mouse has a mass of 10g. What is the order v6 *q6p7oaslt3 2sy/dlu5qkoof magnitude of the ratio belq s 2dsotu536o76/y*kqv laptween 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 convlq/p 2jr,; cex:)g)+j htot3b7ap v aperted to grams first, by multiplying by 1000 . The ratio is the mass of the crc/ p+jp;:p)v7jaleog,3b ax 2)tht q ar divided by the mass of the mouse: $$ \frac{1000 \times 1000}{10}=100000 $$ As $100000=10^5$, the order of magnitude is 5 .