Item WC005002: The direction and speed of air can be measured.
Can the direction air is moving and the speed at which it is moving be measured?
- Both the direction air is moving and the speed at which air is moving can be measured.
 - The direction air is moving can be measured but the speed at which air is moving cannot be measured.
 - The speed at which air is moving can be measured but the direction air is moving cannot be measured.
 - Neither the speed at which air is moving nor the direction air is moving can be measured.
 
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% | 

