How many orders of magnitude are there between the size of a dog and the size of a subatomic particle?
A) 5
B) 15
C) 25
D) 35

Question

Quizplus · Accepted Answer

The size of a typical dog is around 1 meter, while the size of a subatomic particle is around 0.00000000001 meters (based on the size of an electron). This difference in size can be expressed as a ratio of 1:10^15. Each order of magnitude represents a factor of 10, so the difference between the two sizes is 15 orders of magnitude (or 15 factors of 10). Therefore, the correct answer is B) 15.

How Many Orders of Magnitude Are There Between the Size