Question

the passage below describes an experiment. read the passage and then follow the instructions below. helen and her friend felipe had nine identical long, rectangular containers. helen added water to the containers, filling three to a depth of one - half inch, three to a depth of one inch, and three to a depth of two inches. she lifted the end of one container to a height of three inches, let the water settle, and then quickly set the container back down. this motion created a wave. using a stopwatch, felipe timed how long it took the wave to travel across the container and back one time. helen and felipe repeated this process with all nine containers. identify the question that helen and felipes experiment can best answer. does water depth affect the amount of time it takes waves to travel through water in containers? does container shape affect the amount of time it takes waves to travel through water in containers? are the heights of waves in containers affected by the depth of water in the containers?

Explanation:

Helen and Felipe varied the water depth (one - half inch, one inch, two inches) in identical containers and measured the time for waves to travel. The independent variable is water depth, and the dependent variable is wave travel time. The container shape was kept the same (identical long, rectangular containers), so the experiment is not about container shape. Also, the experiment measured time (not wave height), so it's not about wave height.

Answer:

Does water depth affect the amount of time it takes waves to travel through water in containers?