1. Motion

2. Definition
Motion is an event that involves a change in the position or location of something.

3. Motion is Relative
Relative – it is described compared to a REFERENCE POINT

4. Speed Average Speed Comparison of time and distance
Distance traveled per unit time
S = d / t
T = d / s
D = s x t

5. Speed Instantaneous Speed
Speed at any instant

6. Speed Constant Speed Speed that does not change
Instantaneous speed that does not change

7. Velocity
Speed in a specific direction

8. Distance – Time Graph
Distance
Time

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

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

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

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

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

14. Distance-Time Graphs…
Show the motion of an object by plotting the distance the object has traveled against the time.

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

16. Motion Graph # 1 Straight, Flat Line
As time passes, there is no change in distance; no motion

17. Motion Graph # 2 Straight, Increasing Line
As time passes, distance increases
The change in distance in constant – no stopping & starting

18. Motion Graph # 3 Straight, Decreasing Line
As time passes, distance decreases
The change in distance is constant

19. Motion Graph # 4 Changing Line
A changing line means changing distance
Distance increases  doesn’t change  decreases

20. 30 At this speed, how far would you travel What’s the speed limit?
in ½ an hour?
in 2 hours?
in 10 minutes?
in 1 hour?

21. What speed? 1 hour to travel 20 km So Speed = 20 km/h
Distance – Time Graph 1 2 10 20 30 40 50
Distance (km)
Time (hours)
1 hour to travel 20 km
What speed?
So Speed = 20 km/h

22. What speed? 2 hours to travel 30 miles So Speed = 15 mph ?
Distance – Time Graph 1 2 10 20 30 40 50
Distance (miles)
Distance (miles) ?
Time (hours)
2 hours to travel 30 miles
So Speed = 15 mph
What speed?

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

24. Distance – Time Graph
Slower
Distance
Stopped
Fast
Time

25. In your notebook… p. 78 p. 79 Speed & D/T Graphs Notes
Draw a Picture or Create a Thinking Map to describe Motion and Velocity.
Summary: (5 sentences)
Describe how motion, speed and velocity affect objects daily in your life. Explain the parts of a D/T graph.
Speed & D/T Graphs Notes
Glue in your Forces Notes here