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 y:a62qbr8bx+c, cj i1 bzy4uamouse has a mass ouhw)g 6v*/afb5j0 yjkf 10g. What is the order of magnitude of the ratio between the mass of the car to t0/gvywh) f kujb*aj56hat 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 muso 3 i.amdl(s** fuoq.kt be converted to grams first, by multiplying by 1000 . The ratio is the mass of the cak am*dfsolo *.3.(qi ur divided by the mass of the mouse: $$ \frac{1000 \times 1000}{10}=100000 $$ As $100000=10^5$, the order of magnitude is 5 .
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Post time 2024-8-21 21:17:15