1. Observe, describe, and compare the motion of objects using speed. Based on data collected, graph and calculate average speed using distance and time. WARM-UP Student Objective Go to www.quizlet.com or http://socrative.com/ to review speed vocab. (Room: mlkelly)www.quizlet.com http://socrative.com/

2. Kahoot! Go to internet, then kahoo.it Enter PIN Exit slip: Matching Vocabulary

3. In Each Group: 1.Walker: This person chooses what pace to walk at and stays in place for at least one interval 2. Timer: This person tells the walker when to start and stop, at 3 second intervals. - You need to keep pace with the walker so they can hear you. -Be sure data is recorded and human marker is standing next to the walker before saying start again. 1. Human Marker: Stand next to your walker at start & stay there until your group’s data has been recorded. 2. Data Recorder: Records data in the 1 st distance column. 3. Measurer: Measures from the human marker to the walker in meters (ex: 5.25 m) and tells this number to the data recorder.

4. Time (in seconds) Distance from last time mark (in meters) Distance from “Start” point (in meters) Speed (distance ÷ 3 sec.) 3 6 9 12 15 18 21 a a

5. Time (in seconds) Distance from last time mark (in meters) Distance from “Start” point (in meters) Speed (distance ÷ 3 sec.) 33.2 61.54.7 (3.2 + 1.5) 94.79.4 (4.7 + 4.7) 1209.4 151.210.6 1815.325.9 218.534.4 a a 1.07 m/s (3.2 ÷ 3) 0.4 m/s 0.5 m/s (1.5 ÷ 3) 1.57 m/s 0 m/s 5.1 m/s 2.83 m/s

6. 0 3 6 9 12 15 18 21 Time (in seconds) Distance (in meters) ______________________’s Speed

7. 0 3 6 9 12 15 18 21 Time (in seconds) Distance (in meters) ___Mrs. Kelly’s________’s Speed 50 40 35 30 25 20 15 10 5 45 4.5

8. Speed Graph Time