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 .6 uk3 frn0jzd9huk5b 1000kg. A mouse has a mass of4 akto .7 vc21q7 i-.yslkhenn 10g. What is the order of magnitude of4nhc2aeoy..ts-q i1k7 v7nkl the 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 convert9*//cwp9uco ; k:fs za1yi :i+ wnk-nf*raigged to grams first, by multiplying by 1000 . The ratio is the mass of the car divided by the mass of th -nwgy si*f ;iwnou91fgc/c:kz*/ 9 ar+ai:pke 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