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 a mass of 10g. What is the order otz fx 6v 2rogvta9jm3524k9qz f magn t42r2 vm f6g j3qzvkaxz9to59 ne5r9y7a 5wv5t,p-kmo 2ws-uc rwit( itude of the ratio between the mass of the car to that7t,r t 9um yi5ek- 5wac5ovwpr-snw( 2 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 first, by multiplying by 1000 .s(m qrmn w.m8nig9ry7k/n )6o The ratio is the mass of the cm8g inmnr/rw yo 6(79mk)qsn. ar 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