Changes

9. What has happened to the values of the KE and PE as compared to total energy?

9. What has happened to the values of the KE and PE as compared to total energy?

10. What do you think is happening? Is this what you will think will happen when you try this experiment? Why? Why not? What is different?

10. What do you think is happening? Is this what you will think will happen when you try this experiment? Why? Why not? What is different?

|style="width: 50%;|Step 4 - 11. Notice where the pendulum is.  This extreme position to the right is at a different height than.  Why?  What role does friction play and where does it come from

|style="width: 50%;|Step 4 - 1. Notice where the pendulum is.  This extreme position to the right is at a different height than.  Why?  What role does friction play and where does it come from

12. Look at the graph – what are the variables in the bar chart?  Where has the thermal energy come from? What do you expect will happen to the simple pendulum?

2. Look at the graph – what are the variables in the bar chart?  Where has the thermal energy come from? What do you expect will happen to the simple pendulum?

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