OCE 1001 Chapter 9 Questions with Correct Answers (Grade A+)
Question 1: Based on the map of worldwide tidal patterns, Iceland experiences which of the following?
Answer: Semidiurnal Tidal Pattern
Question 2: At 28 degrees north latitude, why are some idealized high tides higher and some high tides
lower?
Answer: The tidal bulges are rarely centered on the equator, so this location passes through different parts of
the two tidal bulges.
Question 3: In the figure above, which shows a hypothetical tidal pattern over a 24-hour period. Which
letter(s) represent(s) high tide?
Answer: A, C, E
Question 4: As illustrated on the left side of the SmartFigure tide graph, why is the idealized high tide
at 28 degrees north latitude higher than the corresponding high tide at 28 degrees south latitude?
Answer: These two locations are passing through different parts of the same tidal bulge at the same time.
Question 5: Why is the idealized highest high tide at 28 degrees south latitude delayed by 12 hours from
the highest high tide at 28 degrees north latitude?
Answer: That is how long it takes for the location at 28 degrees south latitude to rotate into the largest part
of the high tide bulge.
Question 6: Why are the idealized high tides at the equator all about the same height?
Answer: Locations at the equator pass through the same part of the two tidal bulges with each high tide.
Question 7: The angular distance of the Sun or the Moon above or below the Earth's equatorial plane is
called the:
Answer: declination
Question 8: A neap tide has:
Answer: very low tidal range.
Question 9: The center of mass of the Earth-Moon system is called the:
Answer: barycenter
Page 1
, Question 10: Based on the map of worldwide tidal patterns, California experiences which of the
following?
Answer: Mixed Tidal Pattern
Question 11: There is constructive interference between the lunar and solar tidal bulges during
________ tides.
Answer: spring
Question 12: A spring tide:
Answer: has very high high tides and very low low tides
Question 13: If you are standing at 28 degrees north latitude, you will experience a high tide when the
Moon is directly overhead. When will low tide occur?
Answer: Six lunar hours later
Question 14: The graph shown is an example of which of the following tidal patterns?
Answer: Diurnal Tidal Pattern
Question 15: The Maelstrom off the coast of ________ is one of the strongest whirlpools in the world.
Answer: Norway
Question 16: The Bay of Fundy is well known for which tidal characteristic?
Answer: very high tidal range
Question 17: Based on the map of worldwide tidal patterns, Texas experiences which of the following?
Answer: Diurnal Tidal Pattern
Question 18: The New Moon is immediately followed by the ________ phase of the Lunar Cycle.
Answer: Waxing crescent
Question 19: The tides are considered an example of shallow-water waves because the tidal bulges have
a wavelength that is on the order of __________.
Answer: thousands of kilometers
Page 2
Question 1: Based on the map of worldwide tidal patterns, Iceland experiences which of the following?
Answer: Semidiurnal Tidal Pattern
Question 2: At 28 degrees north latitude, why are some idealized high tides higher and some high tides
lower?
Answer: The tidal bulges are rarely centered on the equator, so this location passes through different parts of
the two tidal bulges.
Question 3: In the figure above, which shows a hypothetical tidal pattern over a 24-hour period. Which
letter(s) represent(s) high tide?
Answer: A, C, E
Question 4: As illustrated on the left side of the SmartFigure tide graph, why is the idealized high tide
at 28 degrees north latitude higher than the corresponding high tide at 28 degrees south latitude?
Answer: These two locations are passing through different parts of the same tidal bulge at the same time.
Question 5: Why is the idealized highest high tide at 28 degrees south latitude delayed by 12 hours from
the highest high tide at 28 degrees north latitude?
Answer: That is how long it takes for the location at 28 degrees south latitude to rotate into the largest part
of the high tide bulge.
Question 6: Why are the idealized high tides at the equator all about the same height?
Answer: Locations at the equator pass through the same part of the two tidal bulges with each high tide.
Question 7: The angular distance of the Sun or the Moon above or below the Earth's equatorial plane is
called the:
Answer: declination
Question 8: A neap tide has:
Answer: very low tidal range.
Question 9: The center of mass of the Earth-Moon system is called the:
Answer: barycenter
Page 1
, Question 10: Based on the map of worldwide tidal patterns, California experiences which of the
following?
Answer: Mixed Tidal Pattern
Question 11: There is constructive interference between the lunar and solar tidal bulges during
________ tides.
Answer: spring
Question 12: A spring tide:
Answer: has very high high tides and very low low tides
Question 13: If you are standing at 28 degrees north latitude, you will experience a high tide when the
Moon is directly overhead. When will low tide occur?
Answer: Six lunar hours later
Question 14: The graph shown is an example of which of the following tidal patterns?
Answer: Diurnal Tidal Pattern
Question 15: The Maelstrom off the coast of ________ is one of the strongest whirlpools in the world.
Answer: Norway
Question 16: The Bay of Fundy is well known for which tidal characteristic?
Answer: very high tidal range
Question 17: Based on the map of worldwide tidal patterns, Texas experiences which of the following?
Answer: Diurnal Tidal Pattern
Question 18: The New Moon is immediately followed by the ________ phase of the Lunar Cycle.
Answer: Waxing crescent
Question 19: The tides are considered an example of shallow-water waves because the tidal bulges have
a wavelength that is on the order of __________.
Answer: thousands of kilometers
Page 2
