<p>Points: ___ /15 Name: ______</p><p>Graphing Speed </p><p>Part 1: Making a graph (11 pts) Make a graph for the rolling ball. All data (distance and time coordinates) are given below for a rolling ball.</p><p>Time Distance Title the graph “distance vs. time for rolling ball” (sec) (m) 0.3 3 Label x-axis as time in seconds 0.5 6 Label y-axis as distance in meters</p><p>0.7 7.5 Use a true number line of .10 (.10, .20, .30, etc) for the x-axis 0.9 10 Use a true number line of 1 for the y- axis 1.1 12 1.3 14.3 Plot the data 1.5 15 Use a line of best fits 1.7 17 1.9 20 2.1 22 2.3 23</p><p>Answer the following questions regarding the graph you made 1. What is the ball’s speed at 1.3 seconds? </p><p>2. What is the ball’s speed at 1.7 seconds? </p><p>3. Is the ball at constant speed or does it change? </p><p>4. What is the slope of this line?</p><p>Part 2: Analyzing Speed Graph (5 pts) Look at the graph and answer the following questions</p><p>1800 1600 1400 ) 1200 m (</p><p> e 1000 c n</p><p> a 800 t s i 600 D 400 200 0 1 2 3 4 5 6 7 8 9 10 11 Time (min)</p><p>On Saturday, Ashley rode her bike to visit Maria. Maria’s house is directly east of Ashley’s. The graph shows how far Ashley was from her house after each minute of her trip.</p><p>1. Ashley rode at a constant speed for the first 4 minutes of her trip. What was her constant speed?</p><p>2. What was her average speed for the entire trip? 3. What was her average velocity for the entire trip?</p><p>4. Ashley stopped to talk with another friend during her trip. How far was she from her house when she stopped?</p><p>5. What is the slope of the line after Ashley stopped to talk with her friend? How is the slope of the line related to her speed?</p><p>Part 3: Analyzing Multiple Speed Graphs (6 pts)</p><p>Examine the graph below:</p><p>350</p><p>300</p><p>250 ) m ( 200 n o i t i</p><p> s 150 o P 100</p><p>50</p><p>0 1 2 3 4 5 6 7 8 9 10 11 Time (sec)</p><p>1. Which object’s speed is larger at 8 seconds?</p><p>2. Which object’s speed is larger at 12 seconds?</p><p>3. What is the speed of each object at 4 seconds?</p><p>4. Explain the motion of object 1.</p><p>5. Explain the motion of object 2 (there is more than one motion).</p><p>6. At what time doe the objects have the same speed?</p>