1. 1.3 Acceleration The Drop Tower at Canada’s Wonderland slowly carries you up in a seat to the top of the tower and then suddenly releases you! On the way down, your arms and hair fly upward as the velocity of your seat increases. The thrill of this sudden change in motion can frighten and exhilarate you all at once. Sudden changes in velocity are part of the thrill of theme park rides.

2. 1.3 Acceleration While it is true that objects sometimes move at constant velocity in everyday life, usually the velocities we observe are not constant. Recall that Non-Uniform Motion is motion that is not at a constant speed or in a straight line. SP #2, 3 p.24, SP #1 p.25

3. 1.3 Position-Time Graphs

4. Graph B The slope of the graph is increasing negative; object’s velocity is increasing [W]. The object starts at rest at speeds up in the negative direction.

5. 1.3 Position-Time Graphs Graph C The slope of the graph is decreasing positive; object’s velocity is decreasing [E]. The object slows down in the positive direction and comes to a stop.

6. 1.3 Position-Time Graphs Graph D The slope of the graph is decreasing negative; object’s velocity is decreasing [W]. The object slows down in the negative direction and comes to a stop.

7. 1.3 Homework Practice # 2,3 p.24 Practice # 1,2 p.25 Questions #7-10 p.30

8. 1.3 Velocity-Time Graphs (Part 2)

9. 1.3 Velocity-Time Graphs SP #1 p.23 Determine the skateboard’s acceleration.

10. 1.3 Velocity-Time Graphs SP #1 p.26 Determine the skateboard’s displacement after 10.0 s.

11. 1.3 Velocity-Time Graphs SP #2 p.26 Determine the object’s displacement after a) 5.0 s, b) 10.0 s.

12. 1.3 Average Velocity vs. Instantaneous Velocity

13. SP #1 p.28 Determine the object’s instantaneous velocity @ 2.0 s.

14. 1.3 Homework (Part 2) Practice # 1b,2a p.29 Questions #4-6,11 p.30