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 100nf.epzp)rd2 nd*9iw9n (iou.j;i 1k q0kg. A mouse has a mass of 10g/h,z,z5u aj* jmooc .b. What is the order of magnitude of th.*m,o ,bjjhco5z uz/ae ratio between 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 grams firsbk3 ug*btg175e 6 y 5cngoppl-t, by multiplying by 1000 . The ratio is the mas1kcl57oyg- n*et g3up b6gp5b s of the car divided by the mass of the mouse: $$ \frac{1000 \times 1000}{10}=100000 $$ As $100000=10^5$, the order of magnitude is 5 .