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Tidal Jeopardy !

Tidal Jeopardy !. Tidal Jeopardy !. Final Jeopardy. What is a Wave ?. A Wave is a movement of energy through a body of water. Back to Menu. What 3 factors influence the size of a wave?. The strength of the wind, the length of time the wind blows, and the distance the wind blows across.

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Tidal Jeopardy !

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  1. Tidal Jeopardy!

  2. Tidal Jeopardy! Final Jeopardy

  3. What is a Wave?

  4. A Wave is a movement of energy through a body of water. Back to Menu

  5. What 3 factors influence the size of a wave?

  6. The strength of the wind, the length of time the wind blows, and the distance the wind blows across. Back to Menu

  7. Define 4 parts / characteristics of a wave.

  8. Crest: highest point Trough: lowest point Wavelength: distance between 2 crests / troughs WaveHeight: distance from crest to trough Frequency: number of waves during a certain interval of time Back to Menu

  9. Explain what is happening to the wave at each point. C B A

  10. As the wave nears shore at B, the bottom of the wave slows as it scrapes the ground. By the time it reaches C, the top crashes over the bottom - topples C B A Back to Menu Final Jeopardy

  11. Describe the two types of daily tides.

  12. High tide is when the water level is at its highest point. Low tide the lowest point. Back to Menu

  13. What causes tides, and how often does a tidal cycle occur?

  14. The gravity of the Moon & Sun cause tides. Tides occur every 12 hours and 25 minutes. Back to Menu

  15. What are Spring & Neap tides? How are the ‘planets’ aligned?

  16. Spring tide is the greatest difference between high & low tide. Neap tide is the smallest difference. Back to Menu

  17. Waves do not move water forward. Explain why, and what happens when waves reach the shore.

  18. Wind energy is transferred through the water. Near the shore, wave height increases as length decreases, causing wave to break. Back to Menu Final Jeopardy

  19. Two natural phenomena we have studied this chapter are...

  20. Tsunamis and El Nino Back to Menu

  21. What causes a Tsunami and where does it occur?

  22. An earthquake in the ocean floor. Back to Menu

  23. What is Upwelling and how does El Nino affect it?

  24. Upwelling is when warm water is pushed away by wind and cold water rises. El Nino brings more warm water, preventing upwelling. Back to Menu

  25. What is a Tsunami like in the open ocean compared to when it reaches shore? What causes this difference?

  26. In the open ocean, tsunamis have a small wave height, but massive wavelength. On shore, the length rapidly decreases from friction, causing the height to spike. Back to Menu Final Jeopardy

  27. What are the 2 types of currents?

  28. Surface currents and Deep currents. Back to Menu

  29. What causes a surface current? What is the strongest surface current in the N. Atlantic Ocean?

  30. Surface currents are driven by wind. The Gulf Stream. Back to Menu

  31. What kind of currents affect climate and how? What causes the other kind of current?

  32. Surface currents heat or cool air above them, affecting weather of land nearby. Deep currents are caused by differences in density.

  33. After spending some time in the ocean, you turn to go dry off… but everything is gone! What happened?

  34. Waves hitting the beach at an angle causes Longshore Drift. Your stuff is up current. Back to Menu Final Jeopardy

  35. What is Salinity?

  36. The amount of dissolved salt in water. Back to Menu

  37. What is the average salinity in the ocean?

  38. 35 parts per thousand (35ppt). Back to Menu

  39. What two major effects does salinity have on the properties of water?

  40. Salinity increases the density of water and decreases the freezing point (to -1.9⁰C). Back to Menu

  41. Rank the following locations based on where a ship will float highest in the water to lowest: Pacific Ocean, at the mouth of a river, Arctic Ocean.

  42. Arctic ocean – frozen water increases amount of salt left behind Pacificocean – has average salinity Rivermouth – supply of fresh water lowers avg salinity. Back to Menu Final Jeopardy

  43. What 4 properties of ocean water change with depth and how do they change as you go deeper? 10 60 30

  44. STOP

  45. As depth increases… Temperature decreases Salinity increases Density increases (salty & cold) Pressure increases Back to Menu

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