The Movement Of Ocean Water Chapter Study Guide
Chapter Study Guide
- 1.
Deep currents form when _________________.
- A.
Cold air decreases water density.
- B.
Warm air increases water density
- C.
The ocean surface freezes and solids from the water underneath are removed.
- D.
Salinity increases
Correct Answer
D. Salinity increasesExplanation
Deep currents form when salinity increases. This is because an increase in salinity makes the water denser, causing it to sink and flow towards the bottom of the ocean. As the denser water sinks, it creates a current known as a deep current. These deep currents play a crucial role in the ocean's circulation and help transport heat and nutrients around the globe.Rate this question:
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- 2.
When waves come near the shore,
- A.
They speed up.
- B.
They maintain their speed
- C.
Their wavelength increase
- D.
Their wave height increases
Correct Answer
D. Their wave height increasesExplanation
As waves approach the shore, their wave height increases. This occurs because the bottom of the wave begins to interact with the ocean floor, causing the wave to slow down. However, the wave's energy remains constant, so as the wave slows down, the energy becomes concentrated in a smaller space, resulting in an increase in wave height. Therefore, as waves come near the shore, their wave height increases.Rate this question:
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- 3.
Whitecaps break ______________.
- A.
In the surf.
- B.
In the breaker zone
- C.
In the open ocean
- D.
As their wavelenght increases
Correct Answer
C. In the open oceanExplanation
Whitecaps are formed when wind blows across the surface of the water, causing the waves to become steeper and eventually break. This breaking of waves, known as whitecaps, typically occurs in the open ocean where the wind has a longer distance to act on the water and create larger waves. In contrast, in the surf or breaker zone closer to the shore, the waves are usually already breaking and whitecaps are less common. Therefore, the correct answer is "in the open ocean".Rate this question:
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- 4.
Tidal range is greatest during _______________.
- A.
Spring tide
- B.
Neap tide
- C.
A tidal bore
- D.
The daytime
Correct Answer
A. Spring tideExplanation
Tidal range refers to the difference in height between high tide and low tide. During a spring tide, the gravitational forces of the Sun and the Moon align, resulting in a higher tidal range. This occurs during the new moon and full moon phases. In contrast, during a neap tide, the gravitational forces of the Sun and the Moon counteract each other, resulting in a lower tidal range. Therefore, the tidal range is greatest during a spring tide.Rate this question:
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- 5.
Tides alternate between high and low because the moon revolves around the Earth _______.
- A.
At the same speed the Earth rotates.
- B.
At a much faster speed than the Earth rotates.
- C.
At a much slower speed than the Earth rotates
- D.
At different speeds
Correct Answer
C. At a much slower speed than the Earth rotatesExplanation
The tides alternate between high and low because the moon revolves around the Earth at a much slower speed than the Earth rotates. This slower speed allows the gravitational pull of the moon to affect different parts of the Earth's oceans, causing the tides to rise and fall.Rate this question:
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- 6.
El nino can cause _____________.
- A.
Droughts to occur in Indonesia and Australia.
- B.
Upwelling to occur of the coast of South America.
- C.
Earthquakes
- D.
Droughts to occur in the southern half of the United States.
Correct Answer
A. Droughts to occur in Indonesia and Australia.Explanation
El Niño is a climate phenomenon characterized by the warming of the Pacific Ocean, which can have significant impacts on weather patterns worldwide. During El Niño events, the normal trade winds weaken, leading to reduced rainfall in Indonesia and Australia. This decrease in precipitation can result in drought conditions in these regions. El Niño does not directly cause earthquakes or upwelling off the coast of South America, nor does it specifically lead to droughts in the southern half of the United States.Rate this question:
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- 7.
Explain the difference between upwelling and el nino.
- 8.
Describe the two parts of a wave. Describe how these two parts relate to wavelength and wave height.
- 9.
Compare the relative positions of the Earth, moon, and sun during the spring and neap tides.
- 10.
Describe how warm-water currrents affect the climate in the British Isles.
- 11.
Describe the factors that form deep currents.
- 12.
Explain why it is important to study El Nino and la Nina.
- 13.
If there is a high tide at 5 PM on Tuesday, when will the high tide happen on Wednesday?
- 14.
What are the differences between the following terms:deep current vs. surface currentel nino vs la ninaspring tide vs neap tidetide and tidal range
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Mar 20, 2023Quiz Edited by
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Apr 12, 2010Quiz Created by
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