Question

walter noticed that some of the footballs his team used during practice were not fully inflated. he wondered whether fully inflated footballs would travel farther than footballs with a lower air pressure. to find out, walter collected 20 standard footballs. he fully inflated ten of them to an air pressure of 13 pounds per square inch. he inflated the remaining ten to an air pressure of 10 pounds per square inch. walter used a football launcher to launch a ball across a football field. he measured the distance the football traveled and then launched the next ball. walter repeated this with all 20 balls. complete the sentence. in this experiment, the distance the footballs traveled was _______________. a dependent variable an independent variable

Explanation:

The distance depends on air - pressure. Air - pressure is manipulated (independent), so distance is the variable that changes in response, making it dependent.

Answer:

a dependent variable