1. Review!

2. Review Time! Which of the following as the greatest magnitude? 400 1
1 million 99
A magnet

3. Review Time! Which of the following quantities does not have a unit?
5 cm 5
1 kg
99 s

4. Review Time! Which of the following directions is positive? down
over there
left
[N]
south

5. Review Time! Which of the following is a scalar quantity? position
distance
5 m [S]
to the left to the left

6. Review Time!
Ben is sitting in room A265 at a desk. He is 3 m from the garbage can. What object is the reference point?
garbage can
Ben
desk
room A265

7. Review Time! Which of the following is a vector quantity? 5 grapes
8 km/hour
9 lbs
7 km east

8. Review Time!
Which of the following symbols will tell you if a quantity is a vector? cm
[N] -
Both B and C

9. 5.5 - Position Time Graphs

10. position
time

11. Position (m) [forward]
Position vs. Time 30 20
Position (m)
[forward] 10 1 2 3 4
Time (s)

12. equal
different
no speed change
no direction change
different
straight line

13. change in position Dd
change in time Dt

14. Dd Dt
14 m- 10 m
Slope= =
5 s- 3 s
= 2 m/s [E]

15. change
rate
steep
big
fast
shallow
small
slow

16. Speed
scalar
vector
velocity
distance d
df – di Dd
time t
tf – ti Dt

17. positive
constant
positive
velocity
not moving
stationary
negative
constant
negative
velocity

18. 4 m/s forward
2 m/s forward
Jogger A
Jogger A

19. Position (km) [forward]
Position from Home vs. Time 10
Position (km)
[forward] 5 10 20 30 40 50 60 70
Time (min)

20. A C B A

21. 5s – 7s, 14s – 16s
18s – 19s
0s – 2s, 7s – 12s,
16s – 18s, 19s- 20s
2s – 5s, 12s – 14s
2s – 5s, 12s – 14s

22. Let’s Play a Game!
You run

23. Position (km)
[forward]
Time (min)

24. Position (km)
[forward]
Time (min)

25. Position (km)
[forward]
Time (min)

26. Position (km)
[forward]
Time (min)

27. Position (km)
[forward]
Time (min)

28. Position (km)
[forward]
Time (min)

29. Position (km)
[forward]
Time (min)

30. Position (km)
[forward]
Time (min)

31. Position (km)
[forward]
Time (min)

32. Position (km)
[forward]
Time (min)