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

2. 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

3. 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

4. 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

5. 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

6. 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