1. Feb. 11, 2009 Graph the following scenario:
I walked 9 blocks to the coffee store in 8 min. Then, I sat at the store for 10 min. I walked 4 blocks back toward my starting point in 4 min before realizing I had left something at the coffee shop. I immediately turned around and walked 4 blocks back to the coffee shop in 6 min and was there for 2 min. I walked the 9 blocks back to my starting point in 10 min.

3. Review with White Boards
PARTNERS

4. Your desk is moving at all times. How do I know? (Frame of Reference!)

5. What is a vector quantity?

6. List the three vector quantities we’ve talked about.

7. What are the non vector relatives of Velocity and Displacement?

8. If an ice skater is spinning at a constant speed, do they also have a constant velocity? Why or why not?

9. A box is dragged at a constant velocity in a straight-line path across a level surface by a force of 3.2 N. What is the force of friction between the block and the surface?

10. What is the equation for speed?

11. If a bus and a marble were dropped from the Empire State Building, and there were no forces acting on either of them (with the exception of gravity) which would hit the ground first?

12. A curling puck is sent sliding across an ice rink that does not have air resistance. In order to keep the puck sliding at a constant velocity, how much force is needed?

13. The property that causes things to maintain their state of motion (keep doing what they were doing) is called what?

14. If given a list of 4 objects, what property will tell you which has the most inertia?

15. The fact that some people can pull a tablecloth out from under dishes without disturbing the dishes tells us the dishes have their own ______________.

16. I am on a train that is moving at a constant velocity
I am on a train that is moving at a constant velocity. I accidentally drop my phone. In relation to me, where should my phone hit the ground?

17. What is the average speed from time 0 to time 4?

18. To overcome friction to start an object moving on a level surface, a 300-newton force is used. In order to keep the object the sliding at a constant velocity, what size force is needed?

19. A man weighing 500 N is standing unequally on two scales
A man weighing 500 N is standing unequally on two scales. The scale on the left reads 150 N. What will the scale on the right say?

20. What is the velocity of a car that traveled a total of 75 km north in 1.5 hours?

21. A Space Shuttle travels in orbit at 21,000 km/hr
A Space Shuttle travels in orbit at 21,000 km/hr. How far will it travel after 2 days?

22. If the net force on an object is 0 N, we say the object is in _________________

23. A car is traveling 100 km/hr
A car is traveling 100 km/hr. How many hours will it take to cover a distance of 112,000 m?

24. The force that resists motion is called _________________.

25. When you are sitting on a chair, what are two forces acting on you and in what direction do they act?

26. What is the net force on the book in this picture?

27. Drew pulls on a rope with 20 newtons of force forward
Drew pulls on a rope with 20 newtons of force forward. Brandon pulls on the rope with 10 newtons of force backward. The resultant (net) force is ____ newton(s).

28. What two things must remain constant if a moving object is in equilibrium?

29. What is the difference between dynamic and static equilibrium?

30. What does the slope of a distance time graph tell us?

31. What does Newton’s 1st Law say?

32. When looking at a distance time graph, how do you know an object is resting?

33. When looking at a distance time graph, what indicates the object traveling in a negative direction?