Ellen does an experiment by releasing a ball from a height of 1 m above each floor in a tall building. She records the time it takes the ball to reach the floor. Which question is Ellen most likely investigating?

Ellen changes the ball’s height above the floor and measures how long it takes to fall. This investigates how distance relates to gravity, the force that pulls the ball toward the floor. The weak and strong forces do not explain the ball’s fall, and the electromagnetic force is not what she is testing.

AI-written and checked against the verified answer.