Question A. How does the decrease in gravitational potential energy of a falling ball compare to its increase in kinetic energy?
Question B. What happens to the total of the gravitational potential energy plus the kinetic energy as a ball falls?
Data:

Question C. What happens to the gravitational potential energy (Energy #1) as the ball falls?
Question D. What happens to the kinetic energy (Energy #2) as the ball falls?
Question E. What is one reason that some of the energy is ‘lost’ as the ball falls?
Question F. What does the “Total Energy – Time” graph tell you about the total energy of the ball as it falls?