1. Distance Time Distance – Time Graph

2. Distance Time Distance – Time Graph A Click the picture below that matches graph A.

3. Distance Time Distance – Time Graph A B Click the picture below that matches graph B.

4. Distance Time Distance – Time Graph A B C Click the picture below that matches graph C.

5. Distance Time Distance – Time Graph A B C D Click the picture below that matches graph D.

6. Distance Time Distance – Time Graph A B C D E Click the picture below that matches graph E. Steeper means faster!

7. 30 What’s the speed limit? At this speed, how far would you travel in 1 hour? in 2 hours? in ½ an hour? in 10 minutes?

8. 70 If I travel 70 miles in 1 hour, what’s my speed? If I travel 25 miles in ½ an hour, what’s my speed? 50 If I travel 15 miles in ¼ of an hour, what’s my speed? 60 If I travel 10 miles in ¼ of an hour, what’s my speed? 40

9. 345018 The unit for Distance is miles The unit for Time is hours So what is the unit for speed? miles per hour mph

10. The unit for Distance is kilometres The unit for Time is hours So what is the unit for speed? kilometres per hour 345018 km/h

11. metres per second The unit for Distance is metres The unit for Time is seconds So what is the unit for speed? The speed of sound is 330 m/s. This is called Mach 1. 345018 m/s

12. 0 12 10 20 30 40 50 Time (hours) Distance (km) Distance – Time Graph What speed? 1 hour to travel 20 km So Speed = 20 km/h

13. 0 12 10 20 30 40 50 Time (hours) Distance (miles) Distance – Time Graph What speed? 2 hours to travel 30 miles So Speed = 15 mph Distance (miles) ?

14. Now do Exercise 1, Q. 1, 2 & 3 (HSDU Support Materials)

15. 0 12 10 20 30 40 50 Time (hours) Distance (km) Distance – Time Graph How far in ¾ of an hour? Approximately 7½ kilometres. What was the speed for the first part of the journey? 10 km in 1 hour, so 10km/h. How long did she stop for? ¼ of an hour (15 minutes) How long did it take to run 40 km? 2¾ hours (2 hours 45 minutes)

16. Distance Time Distance – Time Graph Fast Stopped Slower