# Physics

1. What is indicated by a velocity-time graph that crosses the x-axis?

2. How can you tell by looking at a position-time graph whether or not the object was changing speed?

3. How can you tell by looking at a velocity-time graph whether or not the object was changing speed?

4. What effect does changing the initial position have on position-time graphs?

5. What effect does changing the initial position have on velocity-time graphs?

6. What does the y-intercept on a position-time graph tell us?

7. What does the y-intercept on a velocity-time graph tell us?

8. What does the x-intercept on a position-time graph tell us?

9. What does the x-intercept on a velocity-time graph tell us?

10. No matter what the initial position and initial velocity are, the velocity-time graph of an object with a positive acceleration will always …

11. No matter what the initial position and initial velocity are, the velocity-time graph of an object with a negative acceleration will always …

12. No matter what the initial position and initial velocity are, the velocity-time graph of an object with no (zero) acceleration will always …

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