Bentouchdestiny Int'l
Wednesday 11 September 2013
Test question
QUESTION 1
(2/3 points)
What is the approximate size of a red blood cell?
10
−
5
m
Status: correct
10
−
8
m
10
−
10
m
(length scale of the Hydrogen atom)
10
−
15
m
(length scale of the nucleus)
What is the approximate diameter of the sun?
10
6
m
10
9
m
Status: correct
10
12
m
10
15
m
How many orders of magnitude is the sun larger than a blood cell?
8
Status: incorrect
42
14
10
14
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