Deck 9: Tides

Question 1

The barycenter follows a smooth orbit around the Sun.

Answer 1

True

Question 2

The force that pulls an orbiting body toward the center of that orbit is called:

A)amphidromic.
B)centrifugal.
C)centripetal.
D)gravitational.
E)tidal.

Answer 2

B

Question 3

The plane through the ellipse that marks the revolution of the Earth around the Sun is called the ecliptic.

Answer 3

True

Question 4

A semidiurnal tide is common along the Pacific coast of the United States.

Question 5

The center of mass of the Earth-Moon system is called the:

A)aphelion.
B)apogee.
C)barycenter.
D)perigee.
E)perihelion.

Question 6

The barycenter follows:

A)a path that is perpendicular to the Earth's ecliptic.
B)a pattern that parallels the Moon's orbit.
C)a smooth orbit around the Sun.
D)a wavy path around the Sun.
E)the Earth's declination.

Question 7

Grunion depend upon the pattern of erosion and deposition of sand for the survival of their eggs.

Question 8

The maximum tidal range in the Bay of Fundy is on the order of 15 meters.

Question 9

The seaward flow of water due to tidal forces through an inlet is called ebb current.

Question 10

Tides are much greater during apogee than during perigee.

Question 11

The tide-generating force is inversely proportional to the cube of the distance.

Question 12

A lunar day is shorter than a solar day.

Question 13

There is no horizontal tide-generating force on Earth at points directly below and opposite the Moon.

Question 14

The tide-generating force varies:

A)directly with the cube of the distance between the objects.
B)directly with the square of the distance between the objects.
C)directly with the square of the distances of the objects divided by the product of the masses.
D)inversely with the cube of the distance between the objects.
E)inversely with the square of the distance between the objects.

Question 15

The difference between centripetal forces and gravitational forces is call the:

A)diurnal force.
B)dynamic force
C)lunar force.
D)residual force.
E)tidal force.

Question 16

Due to the shape of the North Sea,it develops two amphidromic points.

Question 17

The sun and the moon have relatively equal tide-generating forces on earth.

Question 18

A spring tide occurs once per month.

Question 19

A spring tide:

A)has moderate high and low tides.
B)occurs at a blue moon.
C)occurs at the vernal equinox.
D)has very high high tides and very low low tides
E)has very little difference between high and low tides.

Question 20

The center of an open ocean tidal system is called a(n):

A)amphidromic center.
B)cotidal center.
C)rotary center.
D)seiche.
E)tidal flux.

Question 21

In the United States one can find semidiurnal tides along the:

A)Atlantic coast.
B)Gulf of Alaska.
C)Gulf of Mexico coast.
D)Florida Keys.
E)Pacific coast.

Question 22

The angular distance of the orbital plane of the Sun or Moon above or below the Earth's equatorial plane is called the:

A)apogee.
B)declination.
C)ecliptic.
D)perihelion.
E)syzygy.

Question 23

In the United States one can find mixed tides along the:

A)Atlantic coast.
B)Cape Cod.
C)Gulf of Mexico coast
D)Florida Keys.
E)Pacific coast.

Question 24

A full tidal cycle is:

A)12 hours in duration.
B)12 hours 25 minutes in duration.
C)24 hours in duration.
D)24 hours and 50 minutes in duration.
E)48 hours in duration.

Question 25

The Bay of Fundy is well known for which tidal characteristic?

A)large tidal bore.
B)two amphidromic points.
C)very large seiche.
D)very low tidal range.
E)very high tidal range.

Question 26

The tide-generating force varies:

A)directly with the product of the object masses.
B)directly with the product of the cube of the object masses.
C)directly with the square of the distance between the objects.
D)inversely with the product of object masses.
E)inversely with the product of the cube of the object masses.

Question 27

Tidal ranges will be greatest when the Earth and the Moon are at:

A)apogee.
B)aphelion
C)perigee.
D)perihelion.
E)proxigean.

Question 28

To make accurate coastal tidal predicting,one must consider:

A)diurnal tides.
B)partial tides.
C)semidiurnal tides
D)tidal bores.
E)tidal currents.

Question 29

The most common tidal pattern around the world are:

A)diurnal tides.
B)mixed tides.
C)proxigean tides.
D)semidiurnal tides.
E)spring tides.

Question 30

The vertical difference between high and low tides is called the

A)ebb tide.
B)flood tide.
C)tidal bore.
D)tidal height.
E)tidal range.

Question 31

When the earth is at its greatest distance from the sun,it is said to be at:

A)apogee.
B)aphelion.
C)perigee.
D)perihelion.
E)proxigean.

Question 32

Neap tides occur:

A)at summer and winter solstice.
B)during a storm surge.
C)when the moon is full or new.
D)when the moon is at quadrature.
E)when the sun is at perihelion or aphelion.

Question 33

An area that experiences diurnal tides will have:

A)one high tide and one low tide daily.
B)one high tide and two low tides daily.
C)one low tide and two high tides daily.
D)two high tides and two low tides of nearly equal height daily.
E)two unequal low and high tides daily.

Question 34

Compared with a solar day,a lunar day is:

A)equal to a solar day.
B)half the length of a solar day.
C)longer than a solar day.
D)shorter than a solar day.
E)twice the length of a solar day.

Question 35

Spring tide occurs about:

A)once per month
B)once per season.
C)once per year.
D)twice per month.
E)twice per year.

Question 36

An area that experiences semidiurnal tides will have:

A)one high tide and one low tide daily.
B)one high tide and two low tides daily.
C)one low tide and two high tides daily.
D)two high tides and two low tides of nearly equal height daily.
E)two unequal low and high tides daily.

Question 37

The side of the Earth that faces the moon experiences a high tide,the side of the Earth that is opposite from the moon will have a(n):

A)high tide.
B)low tide.
C)neap tide.
D)proxigean tide.
E)spring tide.

Question 38

A neap tide has:

A)moderately high tidal range.
B)moderately low tidal range.
C)no tidal range.
D)very high tidal range.
E)very low tidal range.

Question 39

The maximum tidal currents are reported:

A)about half way between high and low tides.
B)at high tide.
C)at low tide.
D)during neap tides.
E)in the intertidal zone.

Question 40

Which of the following is a tidal current?

A)both ebb tides and flood tides.
B)both neap tides and spring tides.
C)ebb tide.
D)flood tide.
E)spring tide.

Question 41

This wave formed on a river by the flood tide current is called a:

A)ebb tide.
B)flood tide.
C)seiche
D)tidal bore.
E)tsunami.

Question 42

Tidal current can produce rotary currents called:

A)ebb currents.
B)flood currents.
C)shoals.
D)tidal bores.
E)whirlpools.

Question 43

Water flowing out of an enclosed basin due to the tides is called:

A)ebb current.
B)flood current.
C)neap tide
D)spring tide.
E)tidal bore.