Katie conducted three trials of rolling a 5-kilogram ball down 10 steps at her school. Later, her class used the data she collected about the mass of the ball, the height of the stairs, and the gravitational constant to calculate the potential energy of the ball. The graph shows the students’ calculations for the ball at each step of the stairway. a. Create a claim about how kinetic energy and potential energy can change as a ball rolls down a set of steps.
b. Describe the evidence that supports the claim from part (a).