Law of conservation of energy

Measuring the initial and final gravitational potential energies of a ball bounced on a hard surface.

1.) Explain the procedures used to perform the experiment. This should include all of the materials used, the procedure followed, as well as any calculations used in the experiment. Include sufficient detail so that a fellow student could follow the instructions and complete the experiment exactly as you did. What type(s) of energy did you measure in your experiment?

What would be an example of this problem, the math and how to work it?

kinetic energy = mass x velocity²

gravitational potential energy = mass x gravitational acceleration x height

elastic potential energy = spring constant x displacement2

total initial energy = total final energy