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Questions for Graphical Analysis of Motion: Acceleration Lab


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All answers must be in complete sentences.
  1. Describe the motion of your object for procedure one. State whether the object is moving at constant speed or if its speed is changing. Use the appearance of the position vs time graph to support your answer.


  2. Repeat for procedure two.


  3. Describe the motion of your object for procedure one. State whether the object is moving at constant speed or if its speed is changing. Use the appearance of the velocity vs time graph to support your answer.


  4. Repeat for procedure two.


  5. What variable in physics does the slope of the position vs time graph represent? Support your answer using the definition of this variable. What information would you need to include making the slope represent a vector quantity?


  6. What variable in physics does the slope of the velocity vs time graph represent? Support your answer using the definition of this variable. What information would you need to include making the y axis represent velocity rather than speed?


  7. Record the mathematical function that describes the motion of your object for procedure one. Hint: The equation of motion for your object is obtained from the "linear" graph. Think about what variables are represented by the x and the y axes. Write the equation of motion for your object substituting the actual variables for x and y. Substitute numerical values obtained from your graphical analysis for the slope and for the y-intercept.


  8. Record the mathematical function that describes the motion of your object for procedure two. Use the hint given in the previous question.


Conclusion: In your conclusion, answer the purpose in complete sentences. State what value that you found for the acceleration due to gravity. Support your belief that this represents the acceleration due to gravity. In other words, what data did you take to determine the acceleration due to gravity? How did you graphically analyze it to obtain the acceleration due to gravity (how did you know that this analysis would give you acceleration?)? State what was different about the motion of the object in procedure two, citing a supporting reason. Procedure one yields a value for the acceleration do to gravity. What is represented by procedure two? What is its numerical value? Support your belief by answering the same questions stated above.