Record all data in you data table. Elongation low pt. The graph shows an rise as the force increases and the elongation increases. A stiffer spring would require a heavier mass. The force of the constant would decrease.
PEg is greatest at the time it is released and is lowest before the moment it springs back up.
The potential energy with the longer spring is greater,therefore the height of the shorter spring is longer. PEe is greatest at its high point and lowest at its low point. According to table 2, mechanical energy is conserved. This can also be seen if the information from the table is plugged into the conservation of mechanical energy formula.