Which of the following describes the peak of a wave?

The peak of a wave is commonly referred to as the highest point of the wave. This is a key characteristic of wave motion, where the peak represents the maximum displacement from the rest position (or mid point) of the wave. At this point, the energy of the wave is at its highest as it moves upward before descending again. This understanding is essential in various contexts of wave behavior, as it helps to illustrate how waves transfer energy through different mediums.

In further context, while the height of a wave also refers to a measurement related to its amplitude, it is the highest point specifically that is termed as the peak, distinguishing it from other features of the wave such as the trough, which is the lowest point. The maximum distance of vibration from the midpoint is also accurate in describing amplitude but does not directly label the maximum point above the midpoint. Thus, recognizing the peak as the highest point provides a clear and precise identification of that aspect of a wave.