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Item AM052003: When an iron frying pan cools, the distance between the iron atoms decreases, so the pan gets a tiny bit smaller.

A cook takes a hot iron frying pan off the stove to cool. What happens as the iron pan cools?

  1. The mass of the iron atoms increases, so the pan gets a tiny bit heavier.
  2. The mass of the iron atoms does not change, so the pan remains the same.
  3. The distance between the iron atoms decreases, so the pan gets a tiny bit smaller.
  4. The distance between the iron atoms does not change, so the pan remains the same.
Distribution of responses
Answer Choice
Overall
Grades
Gender
Primary Language
 
n = 2895
6–8
n = 1855
9–12
n = 1031
Male
n = 1431
Female
n = 1433
English
n = 2540
Other
n = 306
A. The mass of the iron atoms increases, so the pan gets a tiny bit heavier. 16% 18% 13% 16% 16% 16% 21%
B. The mass of the iron atoms does not change, so the pan remains the same. 31% 30% 34% 28% 34% 31% 33%
C. The distance between the iron atoms decreases, so the pan gets a tiny bit smaller. 29% 26% 33% 33% 24% 29% 24%
D. The distance between the iron atoms does not change, so the pan remains the same. 24% 26% 20% 23% 25% 24% 23%