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    Question ID:   6610         Current Version: 1
Question: What causes ocean wave?
Category: Science > Earth Sciences
Keywords: ocean, wind, cause, wave
Type: what
Rating:(0 ratings)    Views: 499    Discussions: 0   In Watch Lists: 1  

 
    Answer:

The surface waves are caused by wind. When wind blows across the smooth water surface, the friction or drag between the air and the water tends to stretch the surface. Since the water surface can not move, it rises. As waves form, the water surface becomes rougher and it is easier for the wind to grip the surface and intensify the waves. Gravity pulls the wave back down into the ocean. Water pressure from below pushes the water back up, and the cycle continues. The longer the distance, the stronger the wind, and the bigger the waves.

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