CN 2-1-1 What Is Speed Part I October 10, 2017 Page 29

Gravity and Kinetic Energy Course, 1.1: Speed Tracks Focus question (10/10/2017) What is speed? Gravity and Kinetic Energy Course, 1.1: Speed Tracks Step 4

Introduce distance and position What two things would you need to measure in order to know someone’s walking speed? Gravity and Kinetic Energy Course, 1.1: Speed Tracks Step 5

Gravity and Kinetic Energy Course, 1.1: Speed Tracks Introduce time If we want to measure someone’s speed, is there something else we need to measure besides the distance along the tracks? Gravity and Kinetic Energy Course, 1.1: Speed Tracks Step 6

Gravity and Kinetic Energy Course, 1.1: Speed Tracks Discuss speed How long did it take you to get to the end of each track? What distance did you travel? Who had to move faster to get to the end of the track in the 8 seconds? Gravity and Kinetic Energy Course, 1.1: Speed Tracks Step 10

Homework Questions (Page 28) Does more distance over the same time mean more speed or less speed? (Explain) Does more time over the same distance mean more speed or less speed? (Explain) Gravity and Kinetic Energy Course, 1.1: Speed Tracks Step 11