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5 Written questions

5 Matching questions

  1. Geostrophic Gyres
  2. Wave trough
  3. High Tides
  4. Slack Water
  5. Eastern
  1. a Gyres in balance between gravity and the Coriolis Effect.
  2. b There are five of these boundary currents. They carry cold water towards the equator.
  3. c lowest part of a progressive trough
  4. d High water position corresponding to a tidal crest
  5. e a time of no current, occurs at high and low tides when current change direction

5 Multiple choice questions

  1. This type of tidal cycle is found commonly in the Atlantic and Pacific Oceans.
  2. is the difference in height between successive high and low tides
  3. mature wind waves of one wavelength that form orderly undulations of the ocean surface
  4. A wave that surges ashore without breaking.
  5. A result of constructive and destructive interference that is seen on shore when waves do not all appear with a uniform size. Some are larger, some are smaller.

5 True/False questions

  1. ClockwiseWhich direction do gyres flow in the Northern hemisphere?


  2. CapillaryWaves with a tiny wavelength less than 1.73cm. The restoring force is surface tension.


  3. NeapThese tides occur when the earth, moon and sun are at right angles.


  4. Wind Strengthlowest part of a progressive trough


  5. Flood CurrentWater rushing out of an enclosed harbor or bay because of the fall in sea level as a tide trough approaches.


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