What term describes a progressive wave under the continuing influence of the forces that formed it?

What term describes a progressive wave under the continuing influence of the forces that formed it?

• A. Free Wave
• B. Forced Wave
• C. Traveling Wave
• D. Standing Wave

Answer: (B)

A progressive wave under continuing influence of the forces that formed it is a forced (driven) wave. This type occurs when the external forcing—like the wind—continues to supply energy as the wave travels. Because the forcing remains active, the wave’s energy, amplitude, and even its shape can be maintained or adjusted by that ongoing input. Once the forcing stops, the wave would become a free wave, still traveling but no longer being driven, and it would gradually lose energy to damping. A traveling wave simply describes a wave that moves, but doesn’t specify whether it’s being continually forced; a standing wave results from the interference of two waves in opposite directions and isn’t defined by ongoing forcing.

A progressive wave under continuing influence of the forces that formed it is a forced (driven) wave. This type occurs when the external forcing—like the wind—continues to supply energy as the wave travels. Because the forcing remains active, the wave’s energy, amplitude, and even its shape can be maintained or adjusted by that ongoing input. Once the forcing stops, the wave would become a free wave, still traveling but no longer being driven, and it would gradually lose energy to damping. A traveling wave simply describes a wave that moves, but doesn’t specify whether it’s being continually forced; a standing wave results from the interference of two waves in opposite directions and isn’t defined by ongoing forcing.