HW chapter 9
Which of the following existing or proposed tidal power plants would, upon completion, produce the most electricity?
Severn Estuary
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?
Six lunar hours later
Judge the following sentence according to the criteria given below: Earth's continents affect tides BECAUSE they interrupt the free movement of the tidal bulges across the ocean surface.
The assertion and the reason are both correct, and the reason is valid.
Judge the following sentence according to the criteria given below: The variable flow of tidal currents in two directions is an obstacle to efficient electricity generation by a tidal power plant BECAUSE electrical turbines run best when they run at a constant velocity.
The assertion and the reason are both correct, and the reason is valid.
The Bay of Fundy is well known for which tidal characteristic?
Very high tidal range
Which of the following best explains why there is a difference between a lunar day and a solar day?
WRONG: not During one Earth rotation, the Moon has continued orbiting Earth or During one Earth rotation, the Moon has continued orbiting Earth
The center of an open ocean tidal system is called a/an ________
amphidromic point
When the Earth is at its greatest distance from the Sun, it is said to be at ________.
aphelion
In the United States, semidiurnal tides commonly occur along the ________.
atlantic coast
The center of mass of the Earth-Moon system is called the ________.
barycenter
The ________ force pulls an orbiting body toward the center of that orbit.
centripetal
The ________ of the Moon determines the position of the tidal bulges on Earth.
declination
The angular distance of the Sun or the Moon above or below the Earth's equatorial plane is called the ________
declination
Grunion spawning patterns have evolved to take advantage of ________ associated with tides.
deposition and erosion
The attraction between Earth and the Moon is an example of ________ force.
gravitational
A spring tide ________
has very high high tides and very low low tides
If the side of the Earth that faces the Moon experiences a high tide, then the side of the Earth that is opposite from the Moon will have a ________.
high tide
The tide-generating force varies ________
inversely with the cube of the distance between the objects
In order to keep up with the tidal force of the Moon, the tidal bulge waveform moves across Earth's oceans at a speed of about 1,600 ________ per hour.
kilometers
Compared with a solar day, a lunar day is ________
longer than a solar day
The most common tidal pattern around the world are ________
mixed tides
The minimum tidal range happens during ________ tides
neap
There is destructive interference between the lunar and solar tidal bulges during ________ tides.
neap
An area that experiences diurnal tides will have ________
one high tide and one low tide daily
Tidal ranges will be greatest when the Earth and the Moon are at ________
perigee
The difference between centripetal forces and gravitational forces is called the ________.
resultant force
Whirlpools can be created in some restricted shallow passages due to ________.
reversing tidal currents
The maximum tidal range happens during ________ tides.
spring
There is constructive interference between the lunar and solar tidal bulges during ________ tides.
spring
Maximum tides occur once every ________ years when Earth is closest to the Sun, the Moon is closest to the Earth and the Earth-Moon-Sun system is aligned.
1600
A full lunar tidal cycle is ________
24 hours and 50 minutes in duration
The 24-unit tidal power plant at the La Race River estuary in France can generate, at peak operating capacity, enough electricity to power about ________ average U.S. homes.
60,000
Which of the following coasts is an example of a diurnal tidal pattern?
Gulf of Mexico
Examine the five words and/or phrases and determine the relationship among the majority of words/phrases. Choose the one option that does not fit the pattern. Perigee Apogee Perihelion Nadir Aphelion
Nadir
Examine the five words and/or phrases and determine the relationship among the majority of words/phrases. Choose the one option that does not fit the pattern.
Neap tide
Examine the five words and/or phrases and determine the relationship among the majority of words/phrases. Choose the one option that does not fit the pattern. Neap tide Flood tide Ebb current Ebb tide Flood current
Neap tide
The Maelstrom off the coast of ________ is one of the strongest whirlpools in the world.
Norway
Examine the five words and/or phrases and determine the relationship among the majority of words/phrases. Choose the one option that does not fit the pattern. Semidiurnal Diurnal Mixed Quadrature Mixed semidiurnal
Quadrature
The New Moon is immediately followed by the ________ phase of the Lunar Cycle.
Waxing crescent
Examine the five words and/or phrases and determine the relationship among the majority of words/phrases. Choose the one option that does not fit the pattern. Waxing crescent Waxing gibbous Waning gibbous Waxing perigee Waning crescent
Waxing perigee
Which of the following coasts is an example of a semidiurnal tidal pattern?
West Coast of Africa
Which of the following coasts has both semidiurnal and mixed tidal patterns?
West Coast of South America
Which of the following coasts is an example of a mixed tidal pattern?
West Coast of The United States
The barycenter follows ________
a smooth orbit around the Sun
The maximum tidal currents are reported ________
about half way between high and low tides
An area that experiences semidiurnal tides will have ________
two high tides and two low tides of nearly equal height daily
A neap tide has ________
very low tidal range
The Full Moon is immediately followed by the ________ phase of the Lunar Cycle.
waning gibbous
Neap tides occur ________
when the Moon is in quadrature
A tidal current can produce a rapidly spinning body of water called a vortex or ________.
whirlpool
A blue moon occurs once every few _______
years
Which of the following produces a tidal current?
Both ebb tides and flood tides
Which of the following rivers has the largest tidal bores in the world?
Qiantang
In a bay experiencing a mixed tidal pattern, which of the following represents the highest ebb or flood velocity?
The ebb current between the higher high water tide and the lower low water tide
Which of the following statements comparing a tidal power electricity-generating with a conventional thermal power plant is correct?
The initial cost of building a tidal power electricity-generating plant may are higher.
Which of the following statements comparing a tidal power electricity-generating with a conventional thermal power plant is correct?
The operating costs of a tidal power electricity-generating plant are lower.
Which of the following statements comparing a tidal power electricity-generating with a conventional thermal power plant is correct?
Tidal power is considered a cleaner and renewable resource.
Water flowing out of an enclosed basin due to the tides is called a/an ________.
ebb current
In the United States, mixed tides commonly occur along ________
the pacific coast
The vertical difference between consecutive high and low tides is called the ________.
tidal range
The force that creates two simultaneous ocean bulges on opposite sides of Earth, directed toward or away from the Moon, is called the ________ force.
tide-generating
If the resultant force has a significant horizontal component (tangential to Earth's surface), it produces tidal bulges on Earth, creating what are known as ________.
tide-generating forces
Spring tide occurs about ________
twice per month
Which of the following statements concerning tides is correct?
Diurnal tides are a tidal pattern in which there is one high tide and one low tide in a lunar day.
Which of the following statements about Grunion is correct?
Grunion are the only marine fish that comes completely out of water to spawn.
