In the demonstration, 6th grade students use their cell phones to time the ball's movement for a distance of one meter. Multiple timings are averaged to find the mean time. The time is divided by the distance to determine the rate of movement. The ball hits a box at the end of the meter. Students record the data and measure the distance that the box moves after the ball hits it. Various speeds and masses are observed, and students draw conclusions concerning the relationships between speed and mass.