Question 1

A rising tide is known as an ebb tide.

Accepted Answer

A) True 
 B)False

Question 2

Real tides in ocean basins feel the effect of the ________.

Accepted Answer

A)  Coriolis effect 
B)  continents 
C)  water depth 
D)  ocean basin's standing wave 
E)  All of these are correct. 
A)  Coriolis effect 
B)  continents 
C)  water depth 
D)  ocean basin's standing wave 
E)  All of these are correct.

Question 3

The typical semidiurnal period of a solar tide according to equilibrium tidal theory is ________ hours, whereas the semidiurnal lunar tidal period is ________ hours.

Accepted Answer

A)  12.0; 12.4 
B)  24.0; 24.8 
C)  12.4; 12.0 
D)  12.8; 24.0 
E)  12.0; 12.0 
A)  12.0; 12.4 
B)  24.0; 24.8 
C)  12.4; 12.0 
D)  12.8; 24.0 
E)  12.0; 12.0

Question 4

If the tide-producing force is proportional to G × M/R3, then the Moon exerts a greater tide-raising force than the Sun due to the difference in their masses rather than a difference in their distances from the Earth.

Accepted Answer

A) True 
 B)False

Question 5

Tidal days are longer than solar days because

Accepted Answer

A)  the moon rotates more slowly than the Earth. 
B)  the moon rotates more quickly than the Earth. 
C)  the moon moves in the rotates same direction around the Earth as the Earth revolves on its axis. 
D)  the moon moves in the rotates in the opposite direction of the Earth. 
E)  Tidal days are not longer than solar days. 
A)  the moon rotates more slowly than the Earth. 
B)  the moon rotates more quickly than the Earth. 
C)  the moon moves in the rotates same direction around the Earth as the Earth revolves on its axis. 
D)  the moon moves in the rotates in the opposite direction of the Earth. 
E)  Tidal days are not longer than solar days.

Question 6

The center of mass of the Earth-Moon system ________.

Accepted Answer

A)  lies beneath Earth's surface on a line that joins the centers of Earth and the Moon 
B)  describes the true orbit of the Earth-Moon system about the Sun 
C)  is between the Earth and Moon on the line through their centers 
D)  lies beneath Earth's surface on a line that joins the centers of Earth and the Moon and describes the true orbit of the Earth-Moon system about the Sun 
E)  lies beneath Earth's surface on a line that joins the centers of Earth and the Moon, describes the true orbit of the Earth-Moon system about the Sun, and is between the Earth and Moon on the line through their centers 
A)  lies beneath Earth's surface on a line that joins the centers of Earth and the Moon 
B)  describes the true orbit of the Earth-Moon system about the Sun 
C)  is between the Earth and Moon on the line through their centers 
D)  lies beneath Earth's surface on a line that joins the centers of Earth and the Moon and describes the true orbit of the Earth-Moon system about the Sun 
E)  lies beneath Earth's surface on a line that joins the centers of Earth and the Moon, describes the true orbit of the Earth-Moon system about the Sun, and is between the Earth and Moon on the line through their centers

Question 7

A spring tide occurs approximately ________.

Accepted Answer

A)  once per week 
B)  every two weeks 
C)  once per month 
D)  once per year 
E)  twice per year 
A)  once per week 
B)  every two weeks 
C)  once per month 
D)  once per year 
E)  twice per year

Question 8

The tidal range toward the center of an ocean basin with a rotary standing tide is ________ the range at the edges of the basin.

Accepted Answer

A)  smaller than 
B)  larger than 
C)  about the same as 
D)  of longer duration than 
E)  None of these is correct. 
A)  smaller than 
B)  larger than 
C)  about the same as 
D)  of longer duration than 
E)  None of these is correct.

Question 9

A semidiurnal mixed tide is characterized by which of the following?

Accepted Answer

A)  Two high and two low tides per tidal day at the same high- and low-tide levels 
B)  Two high and two low tides per tidal day at different high- and low-tide levels 
C)  One high and one low tide per tidal day 
D)  Two high and two low tides per tidal period at the same high- and low-tide levels 
E)  Two high and two low tides per tidal period at different high- and low-tide levels 
A)  Two high and two low tides per tidal day at the same high- and low-tide levels 
B)  Two high and two low tides per tidal day at different high- and low-tide levels 
C)  One high and one low tide per tidal day 
D)  Two high and two low tides per tidal period at the same high- and low-tide levels 
E)  Two high and two low tides per tidal period at different high- and low-tide levels

Question 10

Diurnal tide cycles occur ________.

Accepted Answer

A)  once a day 
B)  twice a day 
C)  three times a day 
D)  only at low latitudes 
E)  only at high latitudes 
A)  once a day 
B)  twice a day 
C)  three times a day 
D)  only at low latitudes 
E)  only at high latitudes

Question 11

Tidal power is periodic, but it is always available at about the same time each day.

Accepted Answer

A) True 
 B)False

Question 12

The period of the tidal wave is greater than the period of ________.

Accepted Answer

A)  a tsunami 
B)  a gravity wave 
C)  a capillary wave 
D)  All of these are correct 
E)  None of these is correct 
A)  a tsunami 
B)  a gravity wave 
C)  a capillary wave 
D)  All of these are correct 
E)  None of these is correct

Question 13

A diurnal mixed tide is characterized by which of the following?

Accepted Answer

A)  Two high and two low tides per tidal day at the same high- and low-tide levels 
B)  Two high and two low tides per tidal day at different high- and low-tide levels 
C)  One high and one low tide per tidal day 
D)  Two high and two low tides per tidal period at the same high- and low-tide levels 
E)  Two high and two low tides per tidal period at different high- and low-tide levels 
A)  Two high and two low tides per tidal day at the same high- and low-tide levels 
B)  Two high and two low tides per tidal day at different high- and low-tide levels 
C)  One high and one low tide per tidal day 
D)  Two high and two low tides per tidal period at the same high- and low-tide levels 
E)  Two high and two low tides per tidal period at different high- and low-tide levels

Question 14

A Northern Hemisphere ocean basin with a standing-type tidal oscillation will have a standing wave that rotates counterclockwise.

Accepted Answer

A) True 
 B)False

Question 15

Energy can be extracted from tides by ________.

Accepted Answer

A)  the rise and fall of the water 
B)  the horizontal movement of water in tidal currents 
C)  the declination of the tides 
D)  only from diurnal tides 
E)  the rise and fall of the water and the horizontal movement of water in tidal currents 
A)  the rise and fall of the water 
B)  the horizontal movement of water in tidal currents 
C)  the declination of the tides 
D)  only from diurnal tides 
E)  the rise and fall of the water and the horizontal movement of water in tidal currents

Question 16

The tidal bulge on the side of the Earth facing the tide-raising body is caused by the difference between the tidal force at the surface of the Earth and the tidal force at the Earth's center.

Accepted Answer

A) True 
 B)False

Question 17

In an open-ended embayment connected to the sea (for example, the Bay of Fundy), how much of the fundamental standing tide wave form is present?

Accepted Answer

A)  One-half the wave 
B)  The complete wave 
C)  One-quarter the wave 
D)  Two waves 
E)  Four waves 
A)  One-half the wave 
B)  The complete wave 
C)  One-quarter the wave 
D)  Two waves 
E)  Four waves

Question 18

To navigate swift tidal currents safely, small boats need to wait for ________.

Accepted Answer

A)  high water 
B)  low water 
C)  slack water 
D)  ebb tide 
E)  flood tide 
A)  high water 
B)  low water 
C)  slack water 
D)  ebb tide 
E)  flood tide

Question 19

Spring tides are present when the lunar and solar tide waves are in phase with each other.

Accepted Answer

A) True 
 B)False

Question 20

Tides arrive at the same location at the same time each day.

Accepted Answer

A) True 
 B)False

A rising tide is known as an ebb tide.

Real tides in ocean basins feel the effect of the ________.

The typical semidiurnal period of a solar tide according to equilibrium tidal theory is hours, whereas the semidiurnal lunar tidal period is hours.

If the tide-producing force is proportional to G × M/R³, then the Moon exerts a greater tide-raising force than the Sun due to the difference in their masses rather than a difference in their distances from the Earth.

Tidal days are longer than solar days because

The center of mass of the Earth-Moon system ________.

A spring tide occurs approximately ________.

The tidal range toward the center of an ocean basin with a rotary standing tide is ________ the range at the edges of the basin.

A semidiurnal mixed tide is characterized by which of the following?

Diurnal tide cycles occur ________.

Tidal power is periodic, but it is always available at about the same time each day.

The period of the tidal wave is greater than the period of ________.

A diurnal mixed tide is characterized by which of the following?

A Northern Hemisphere ocean basin with a standing-type tidal oscillation will have a standing wave that rotates counterclockwise.

Energy can be extracted from tides by ________.

The tidal bulge on the side of the Earth facing the tide-raising body is caused by the difference between the tidal force at the surface of the Earth and the tidal force at the Earth's center.

In an open-ended embayment connected to the sea (for example, the Bay of Fundy), how much of the fundamental standing tide wave form is present?

To navigate swift tidal currents safely, small boats need to wait for ________.

Spring tides are present when the lunar and solar tide waves are in phase with each other.

Tides arrive at the same location at the same time each day.

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Exam 9: The Tides

A rising tide is known as an ebb tide.

Real tides in ocean basins feel the effect of the ________.

The typical semidiurnal period of a solar tide according to equilibrium tidal theory is ________ hours, whereas the semidiurnal lunar tidal period is ________ hours.

If the tide-producing force is proportional to G × M/R3, then the Moon exerts a greater tide-raising force than the Sun due to the difference in their masses rather than a difference in their distances from the Earth.

Tidal days are longer than solar days because

The center of mass of the Earth-Moon system ________.

A spring tide occurs approximately ________.

The tidal range toward the center of an ocean basin with a rotary standing tide is ________ the range at the edges of the basin.

A semidiurnal mixed tide is characterized by which of the following?

Diurnal tide cycles occur ________.

Tidal power is periodic, but it is always available at about the same time each day.

The period of the tidal wave is greater than the period of ________.

A diurnal mixed tide is characterized by which of the following?

A Northern Hemisphere ocean basin with a standing-type tidal oscillation will have a standing wave that rotates counterclockwise.

Energy can be extracted from tides by ________.

The tidal bulge on the side of the Earth facing the tide-raising body is caused by the difference between the tidal force at the surface of the Earth and the tidal force at the Earth's center.

In an open-ended embayment connected to the sea (for example, the Bay of Fundy), how much of the fundamental standing tide wave form is present?

To navigate swift tidal currents safely, small boats need to wait for ________.

Spring tides are present when the lunar and solar tide waves are in phase with each other.

Tides arrive at the same location at the same time each day.

The Water Planet

Earth Structure and Plate Tectonics

The Sea Floor and Its Sediments

The Physical Properties of Water

The Chemistry of Seawater

The Atmosphere and the Oceans

Ocean Structure and Circulation

The Waves

Coasts, Beaches, and Estuaries

The Living Ocean

The Plankton, Productivity, and Food Webs

The Nekton: Swimmers of the Sea

The Benthos: Living on the Sea Floor

Environmental Issues

The Oceans and Climate Disruption

Filters

The typical semidiurnal period of a solar tide according to equilibrium tidal theory is hours, whereas the semidiurnal lunar tidal period is hours.

If the tide-producing force is proportional to G × M/R³, then the Moon exerts a greater tide-raising force than the Sun due to the difference in their masses rather than a difference in their distances from the Earth.