Question: what is the relationship between the potential energy of a pendulum and the values for mass?
Answer: During the oscillations, the total energy of the system (measured in joules) is called the mechanical energy and it's equal to the GPE plus the kinetic energy (KE), which is the energy of motion. A pendulum's mass has its maximum velocity at the bottom of its path; therefore its KE is a maximum and its GPE is 0.