[ 509 ] Physical Science GED ® TEST SCIENCE FLASH REVIEW • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Refer to the following passage to answer the next five questions. Consider an example of continuous data. Jamie is doing an experiment in physics class. In the experiment, he is trying to answer the question, “How does the velocity of a ball rolling down a ramp change with time?” Distances along the ramp are marked at 0.1, 0.2, 0.3, 0.4, and 0.5 m. He rolls a ball down the ramp. He starts a stopwatch when he releases the ball at the top of the ramp and stops it when it passes the first mark. He repeats this four times and records the average time. He repeats the experiment again, but this time, he stops the watch at the second mark and records the time. He continues with the procedure until he reaches the last mark. He then records the average times and calculates the velocities. The data are shown in the table. Distance (m) Time (s) Velocity (m/s) 0 0 0 0.1 0.20 0.50 0.2 0.28 0.70 0.3 0.35 0.88 0.4 0.40 1.00 0.5 0.45 1.13 Using the graph, plot points for distance following the data given in the table. 1.20 1.00 0.80 0.60 0.40 0.20 0.00 0 0.1 0.2 0.3 0.4 0.5 Time (s) Velocity (m/s)