Slide 1: Distance Time Distance – Time Graph
Slide 2: Distance Time Distance – Time Graph A Click the picture below that matches graph A.
Slide 3: Distance Time Distance – Time Graph A B Click the picture below that matches graph B.
Slide 4: Distance Time Distance – Time Graph A B C Click the picture below that matches graph C.
Slide 5: Distance Time Distance – Time Graph A B C D Click the picture below that matches graph D.
Slide 6: Distance Time Distance – Time Graph A B C D E Click the picture below that matches graph E.
: 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?
: 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
Slide 9: The unit for Distance is miles
The unit for Time is hours So what is the unit for speed? miles per hour mph
Slide 10: The unit for Distance is kilometres
The unit for Time is hours So what is the unit for speed? kilometres per hour km/h
Slide 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. m/s
Slide 12: Time (hours) Distance (km) Distance – Time Graph What speed? 1 hour to travel 20 km So Speed = 20 km/h
Slide 13: Time (hours) Distance (miles) Distance – Time Graph What speed? 2 hours to travel 30 miles So Speed = 15 mph Distance (miles) ?
Slide 14: Now do
Exercise 1,
Q. 1, 2 & 3
(HSDU Support Materials)
Slide 15: 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)
: Distance Time Distance – Time Graph Fast Stopped Slower