1. Physics 9 Unit 2: One Dimensional Motion
Motion Graphs
Physics 9 Unit 2:
One Dimensional Motion

2. Position-Time Graphs
A motion with constant, ________ velocity results in a line of constant and positive ______ when plotted as a ______-time graph. .

3. Position vs. Time Graphs
A motion with ________, positive velocity results in a line of changing and _______ _____ when plotted as a __________ graph
                                                                   
                                               
If the position-time

4. Position vs. Time Sketches
Positive Velocity _______Velocity
Positive Velocity Changing Velocity (acceleration)
                    

5. Slope
The _____of the line on a position-time graph reveals useful information about the velocity of the object.
It's often said, "As the slope goes, so goes the _____."
Whatever ______ the velocity has, the slope will exhibit the ____(and vice versa). If the velocity is ________, then the slope is constant (i.e., a straight line). If the velocity is changing, then the slope is changing (i.e., a curved line). If the velocity is ________, then the slope is positive (i.e., moving upwards and to the right).

6. Check out the slopes! Slow, Rightward (+) Constant Velocity
Fast, _________ Constant Velocity
                    

8. Negative Velocity?
Velocity is _______ when the direction changes!! When an object slows down, it’s just a smaller ___________.
Slow, Leftward (–) Constant Velocity
Fast, Leftward (–) Constant ______
                    

9. Position vs. Time at Rest
__________ line indicates an object is at _____.

10. Overlapping Graphs

11. Principle of Slope
The _______ of slope: This principle states that the slope of the line on a position-time graph is _____ to the velocity of the object.
Make sure to pick 2 points

12. Try this! Velocity =?

13. Make sure to pick 2 points, the object did not start at 0.
Answer
____ m/s!
Make sure to pick 2 points, the object did not start at 0.

14. Velocity - Time Graphs Velocity = ________
A constant, positive velocity results in a line of zero slope.
Velocity = ________

15. With changing, positive _______ results in a _________ when plotted as a velocity-time graph. (Acceleration)
                                                                   
                                              If the velocity-time data

16. In conclusion… Positive Velocity Zero Acceleration
Positive Velocity Positive Acceleration
                   

17. Positive and Negative Slope
________ Direction ________ Direction

20. Describe this motion to the person sitting on your left.

22. Principle of Slope
The slope of the line on a velocity vs. time graph is equal to the _______ of the object. Acceleration = ___m/s2

23. Describe the motion this graph represents to a friend or classmate.