1. Energy in a Pendulum or Oscillating Horizontal Mass
You can often solve problems with oscillators by considering the energy transfer from kinetic energy to potential – either gravitational or elastic. You can also show this on a graph to see how the energies change during the cycle.
2. Energy in a Vertical Mass-Spring System
Things get slightly more complicated when there is energy transferred between three types: kinetic, gravitational and elastic potential energy. This video looks at how they are exchanged in a mass-spring system that is oscillating vertically.