If these terms are already familiar to you, you may wish to skim this chapter and skip to the next one on simple harmonic motion. The only way to really understand these concepts and how to apply them...If these terms are already familiar to you, you may wish to skim this chapter and skip to the next one on simple harmonic motion. The only way to really understand these concepts and how to apply them is to work the examples (group work, homework, simulation exercises, etc.) that are part of this book.