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Can the direction air is moving and the speed at which it is moving be measured?

  1. Both the direction air is moving and the speed at which air is moving can be measured.
  2. The direction air is moving can be measured but the speed at which air is moving cannot be measured.
  3. The speed at which air is moving can be measured but the direction air is moving cannot be measured.
  4. Neither the speed at which air is moving nor the direction air is moving can be measured.
Distribution of responses
Answer Choice
Overall
Grades
Gender
Primary Language
 
n = 2999
6–8
n = 1854
9–12
n = 1145
Male
n = 1475
Female
n = 1464
English
n = 2699
Other
n = 213
A. 64% 61% 69% 62% 66% 65% 53%
B. 14% 15% 12% 15% 13% 14% 13%
C. 14% 16% 12% 14% 14% 14% 21%
D. 8% 9% 7% 9% 8% 8% 14%