AFOQT Practice Test

In the context of waves, what does a greater wave height indicate?

1. Greater frequency

2. More energy

3. Higher speed

4. Longer wavelength

The correct answer is: More energy

A greater wave height indicates more energy in the context of waves. The energy of a wave is directly related to its amplitude, which is the height of the wave from its crest to its trough. As the wave height increases, it carries more energy, allowing it to do more work such as moving objects or creating stronger impacts when it breaks. For instance, waves with a greater height, like those seen during storms, have significantly more energy compared to smaller waves. This is why surfers often seek out larger waves—they provide more thrilling rides due to the increased energy. The other options relate to different aspects of wave behavior. While it's true that wave frequency can be connected to certain energy levels in a different context, it does not directly correlate with wave height alone. Similarly, wave speed and wavelength are governed by other factors, such as the medium through which the wave travels and the nature of the wave itself, rather than wave height specifically.