5 Written questions
5 Matching questions
- Tidal Bore
- Ebb Current
- a These tides result in little variation in the height of tides.
- b The West Wind Drift is an example of this type of boundary current.
- c A high, often breaking wave generated by a tide crest that advances rapidly up an estuary or river.
- d Water rushing out of an enclosed harbor or bay because of the fall in sea level as a tide trough approaches.
- e Waves with a ratio greater than 1:7 will do this.
5 Multiple choice questions
- Surface currents are powered by the sun and ______________
- water rushing into an enclosed area because of the rise in sea level as a tide crest approaches
- In these boundary currents, the flow is from East to West or West to East. They link eastern and western boundary currents.
- These waves tend to be less than 3m high, and have wavelengths between 60 - 150m in the ocean.
- A breaking wave whose crest slides down the face of the wave.
5 True/False questions
Amphidromic Point → Gyres in balance between gravity and the Coriolis Effect.
Wave refraction → Slowing and bending of progressive waves in shallow water.
Swell → These waves move through water shallower than 1/20 their wavelength
Transitional → In these boundary currents, the flow is from East to West or West to East. They link eastern and western boundary currents.
Ekman Spiral → These boundary currents are shallow and broad with boundaries that are not well defined.