Waves
Waves result from interplay between disturbing forces & restoring forces
In the oceans, disturbances originate
- At the surface, winds, ships, etc. perturb still water
- At the bottom, earthquakes, volcanic explosions, submarine landslides, etc. perturb the still water
Primary restoring force for water waves is gravity
Waves transport effects of local disturbance to other parts of the disturbed substance
- Effect of disturbance moves through a substance with little (if any) movement of the substance itself