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 mouse has ap.khsux ,f; 8g mass of 10g. What ,hnz1wy0n 9 g7nea nn8t5ne3 qis the order of magnitude of the ratio between the mass of the car to that of ,nw397 n q ztn aynh51n8geen0the 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 mlj1tu2iqb4e- b;w.sl ust be converted to grams first, by multiplying by 1000 . The ratio is t24uisjqbet.wll b- 1 ;he mass 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 .
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Post time 2024-8-21 21:17:15