What term describes a group of waves of similar wavelength and period moving in the same direction across the ocean surface?

What term describes a group of waves of similar wavelength and period moving in the same direction across the ocean surface?

• A. Wave Trough
• B. Wavelength
• C. Wind Duration
• D. Wave Train

Answer: (D)

A wave train is a group of waves that share similar wavelength and period and travel together in the same direction. This term describes a packet of energy moving as a unit across the surface, so you see a repeating sequence of crests and troughs rather than a single wave. Each wave in the train has roughly the same spacing and time between crests, which is what makes them travel together as a coherent group. The other terms don’t describe a group: a trough is just a low point on a single wave, wavelength is the distance between adjacent crests, and wind duration refers to how long the wind blows to generate waves, not to a group of waves traveling together.

A wave train is a group of waves that share similar wavelength and period and travel together in the same direction. This term describes a packet of energy moving as a unit across the surface, so you see a repeating sequence of crests and troughs rather than a single wave. Each wave in the train has roughly the same spacing and time between crests, which is what makes them travel together as a coherent group. The other terms don’t describe a group: a trough is just a low point on a single wave, wavelength is the distance between adjacent crests, and wind duration refers to how long the wind blows to generate waves, not to a group of waves traveling together.