1. Begin 9.7 Bell Work Questions
9.7 Motion - Review
Begin 9.7 Bell Work Questions

2. 11.7 Motion - Review

3. What is necessary to describe motion accurately and completely?
Frame of Reference

4. What is the difference between distance and displacement?
The length of the path between two points.
Displacement
The difference between the original or starting point and the final or end position.

5. What is the difference between distance and displacement?

6. How do you combine displacements and velocity vectors?
Vector addition

7. What is the final value of each plane?

8. What is the final value of each plane?

9. What is Speed?
The distance traveled over a given amount of time

10. What is equation for speed?
V = d / t
V = speed
d = distance
t = time

11. What are the units for speed?
m / s
Meters per second

12. What is average speed?
Speed over the entire duration of a trip

13. What is instantaneous speed?
Speed at a particular instant in time.

14. What does the slope of a distance-time graph tell you?
Speed

15. What is velocity?
Speed with direction (Vector)

16. What is equation for velocity?
V = d / t

17. a) What does the straight diagonal line represent?
Constant Speed

18. b) What is the speed of the object at 5 seconds?
V = d / t
d = 50 m
t = 5 s
V = 50m / 5s
v = 10 m/s

19. A vehicle travels 2,445 meters in 415 seconds toward the evening sun
A vehicle travels 2,445 meters in 415 seconds toward the evening sun. What is its velocity?
V = d / t
V = d / t
V = ?
V = 2,445 m / 415 s
d =
2,445 m
V = 5.89 m/s towards the sun
t =
415 s

20. What is the speed of a bus that travels 250,000 meters in 18,000 seconds?
V = d / t
V = d / t
V = 250,000 / 18,000
V = ?
d =
250,000 meters
V = m/s
t =
18,000 seconds

21. What distance will a car traveling 165 m/s travel in 30 seconds?
V = d / t
d = v x t
V =
165 m/s
d = 165 m/s x 30 seconds
d = ?
d = 4,950 meters
t =
30 seconds

22. Describe what is occurring in each section of the distance-time graph.
Section 1 – Constant Speed
Section 2 – Increased Constant Speed
Section 3 – Stopped
Section 4 – Constant Speed Back toward the start
Section 5 – Stopped
Section 6 – Constant Speed Back to Beginning

23. Jack Sparrow is on his pirate ship, the Black Pearl, sitting in Port Royal waiting for his pirate friends to attack. He fires a warning shot with his cannon at 20 m/s at the inland. If one of the crewmembers is sitting on the island, next to the ship, how fast is the cannonball moving from the crewmembers perspective?
20 m/s

24. The Black Pearl starts moving at 10 m/s
The Black Pearl starts moving at 10 m/s. If Captain Jack fires another shot with his cannon at 20 m/s in the same direction that the boat is moving. How fast is the cannonball moving from the crewmembers perspective?
30 m/s

25. The Black Pearl is still moving at 10 m/s, but Captain Jack turns the cannon around and fires another shot with his cannon at 20 m/s in the opposite direction that the boat is moving. How fast is the cannonball moving from the crewmembers perspective?
10 m/s

26. Section 11 Quiz!!!