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Kinetic and Potential Energy

Investigation 1 – PostLab

 

 

 

 

 

 

 

ANALYZE IT

Complete the Analysis Questions in your SDR then discuss them as a class. 

  • Look at the data in Table D. The independent variable is the item that is changed in the experiment. What is the independent variable in the experiment? 
  • Look at the data in Table D. How did potential energy change with height? 
  • Look at the data in Table D. The dependent variable is the item that is being measured in the experiment. What is the dependent variable in the experiment? 

Create a graph that compares the potential energy of the ball with the distance the bear traveled.

Note: If you have not used best-fit lines before, you can refer to the procedure Drawing of a Best Fit Line in your Procedural Toolbox

  • Look at the graph. What is the relationship between the potential energy of the pendulum ball and the distance the bear traveled? Describe the data that support your answer. 
  • How is the distance the bear traveled related to its kinetic energy? Think about the experiment with the hand and woodblock to help answer this question. 
  • How is the kinetic energy of the bear related to the potential energy of the pendulum ball? 
  • Think about all of the results of the experiments performed. What conclusions can you make about the height of the pendulum ball, the potential energy of the ball, the kinetic energy of the ball, and the kinetic energy of the bear?
  • Describe the type of energy at each step in the pendulum ball experiment. 

Go back to your predictions in Question 21 of Trial 2:

  • Look at Table D and your graph. Based on your data, was your prediction correct? 

 

GET FOCUSED

Complete the Focus Question in your SDR then discuss it as a class. 

  • How does the transfer of potential energy to kinetic energy relate to the Law of Conservation of Energy?