[ 503 ] Physical Science GED ® TEST SCIENCE FLASH REVIEW • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • A student drops a ball from a tall building, while another student videotapes the ball’s path. They repeat the experiment 10 times. From the videotape, they measure the distance and calculate the velocities and accelerations with time. They average the values and plot them on graphs shown here. 150 100 50 0 0 2 4 6 Time (s) Distance (m) 50 40 30 20 10 0 0 2 4 6 Time (s) Velocity (m/s) 15 10 5 0 0 2 4 6 Time (s) Acceleration (m/s/s) Which conclusions about the ball’s motion are true? A. The velocity is constant, the acceleration decreases, and the distance increases. B. Acceleration is constant, while velocity and distance increase. C. The distance is constant, the velocity decreases, and the acceleration increases. D. Acceleration is constant, distance increases, but the velocity decreases.