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 jsou fnbu;0+-+auj3hdw+)ku10g. What is the order of mag 5wxoy7/ny ) q0yg uusf9vmm,-nitude of the ratio between the mass of the car to t xv7ug,y)s- momf/wy9 nu5q0 yhat 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 m-r1 4iui 8otylah3+lc ust be converted to grams first, by multiplying by 1000 . The ratio is the mass of the car divided by tr1lhi8at+ic o- u3y4 lhe 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