Guide Questions:

1. Analyze the position of the ball as it moves to the ground. Does the total mechanical energy (E) change? What can you infer from this?

2. You noticed that the potential energy (PE) upon hitting the ground became zero. What happened to the energy possessed by the ball?

3. The kinetic energy (KE) of the ball from the maximum height is zero and changes to 7.30 J just before hitting the ground. Where does this increase in energy come from?

4. How does the change in height (h) affect the potential energy (PE) ?

5. How does the change in velocity (v) affect the kinetic energy (KE)?​