Question 1

Tides caused by the inertia and the gravitational force of the sun and moon are called:

Accepted Answer

A)  neap tides. 
B)  astronomical tides. 
C)  tidal surge. 
D)  meteorological tides. 
A)  neap tides. 
B)  astronomical tides. 
C)  tidal surge. 
D)  meteorological tides.

Question 2

Which body has the greatest influence on ocean tides?

Accepted Answer

A)  Sun 
B)  Moon 
C)  Jupiter 
D)  Venus 
A)  Sun 
B)  Moon 
C)  Jupiter 
D)  Venus

Question 3

Tidal bulges are formed as the moon's gravity pulls the surface of the ocean towards the moon.

Accepted Answer

A) True 
 B)False

Question 4

How can tidal energy be used by humans?

Accepted Answer

Within tidal motion lies potential for a

Question 5

A low tide corresponds to the trough of the wave.

Accepted Answer

A) True 
 B)False

Question 6

There can only be one high tide and one low tide per tidal day for any given area.

Accepted Answer

A) True 
 B)False

Question 7

The time between high and low tide when the current changes direction is called:

Accepted Answer

A)  ebb water. 
B)  flood tides. 
C)  slack water. 
D)  amphidromic points. 
A)  ebb water. 
B)  flood tides. 
C)  slack water. 
D)  amphidromic points.

Question 8

A tide pattern of one high and one low each day describes a:

Accepted Answer

A)  diurnal tide. 
B)  mixed tide. 
C)  solar tide. 
D)  semidiurnal tide. 
A)  diurnal tide. 
B)  mixed tide. 
C)  solar tide. 
D)  semidiurnal tide.

Question 9

Most of the energy from the daily rise and fall of the tides comes from:

Accepted Answer

A)  the rotation of the Earth. 
B)  winds. 
C)  heat. 
D)  the movement of plates. 
A)  the rotation of the Earth. 
B)  winds. 
C)  heat. 
D)  the movement of plates.

Question 10

The height of the ocean averaged over a few years' time is called:

Accepted Answer

A)  mean high water. 
B)  mean low water. 
C)  tidal datum. 
D)  mean sea level. 
A)  mean high water. 
B)  mean low water. 
C)  tidal datum. 
D)  mean sea level.

Question 11

The rise and fall in sea level as a tide crest approaches and passes will cause a(n):

Accepted Answer

A)  tidal bore. 
B)  tidal wave. 
C)  ebb current. 
D)  tidal current. 
A)  tidal bore. 
B)  tidal wave. 
C)  ebb current. 
D)  tidal current.

Question 12

World-wide, the most common type of tides are:

Accepted Answer

A)  semidiurnal. 
B)  mixed diurnal. 
C)  diurnal. 
D)  mixed node tides. 
A)  semidiurnal. 
B)  mixed diurnal. 
C)  diurnal. 
D)  mixed node tides.

Question 13

Tractive forces:

Accepted Answer

A)  are never responsible for the tides. 
B)  cause water to flow away from some ocean areas. 
C)  are the primary causes of tidal surges. 
D)  influence the atmosphere only. 
A)  are never responsible for the tides. 
B)  cause water to flow away from some ocean areas. 
C)  are the primary causes of tidal surges. 
D)  influence the atmosphere only.

Question 14

Which of the following statements is FALSE concerning a lunar day?

Accepted Answer

A)  A lunar day is shorter than a solar day. 
B)  A lunar day represents the time between when the moon is highest in the sky and the next time it is highest in the sky. 
C)  A lunar day is 24 hours 50 minutes. 
D)  Because of the length of a lunar day, lunar tides usually arrive 50 minutes later each day. 
A)  A lunar day is shorter than a solar day. 
B)  A lunar day represents the time between when the moon is highest in the sky and the next time it is highest in the sky. 
C)  A lunar day is 24 hours 50 minutes. 
D)  Because of the length of a lunar day, lunar tides usually arrive 50 minutes later each day.

Question 15

The longest of all ocean waves are called:

Accepted Answer

A)  tsunami. 
B)  tides. 
C)  storm surge. 
D)  wind wave. 
A)  tsunami. 
B)  tides. 
C)  storm surge. 
D)  wind wave.

Question 16

Tides are long waves that are generated by gravity and inertia.

Accepted Answer

A) True 
 B)False

Question 17

Tidal friction is gradually slowing Earth's rotation.

Accepted Answer

A) True 
 B)False

Question 18

What are the amphidromic points of the world ocean and how are they determined?

Accepted Answer

The amphidromic point of an ocean is the

Question 19

A spring tide has a greater tidal range than a neap tide, and only occurs during the spring and summer months in each hemisphere.

Accepted Answer

A) True 
 B)False

Question 20

When the sun and moon are in a line with the Earth, the:

Accepted Answer

A)  gravitational attraction will be less. 
B)  difference between high and low tides will be minimal. 
C)  arrival of high tide will be delayed. 
D)  highest high and lowest low tides will occur. 
A)  gravitational attraction will be less. 
B)  difference between high and low tides will be minimal. 
C)  arrival of high tide will be delayed. 
D)  highest high and lowest low tides will occur.

Tides caused by the inertia and the gravitational force of the sun and moon are called:

Which body has the greatest influence on ocean tides?

Tidal bulges are formed as the moon's gravity pulls the surface of the ocean towards the moon.

How can tidal energy be used by humans?

A low tide corresponds to the trough of the wave.

There can only be one high tide and one low tide per tidal day for any given area.

The time between high and low tide when the current changes direction is called:

A tide pattern of one high and one low each day describes a:

Most of the energy from the daily rise and fall of the tides comes from:

The height of the ocean averaged over a few years' time is called:

The rise and fall in sea level as a tide crest approaches and passes will cause a(n):

World-wide, the most common type of tides are:

Tractive forces:

Which of the following statements is FALSE concerning a lunar day?

The longest of all ocean waves are called:

Tides are long waves that are generated by gravity and inertia.

Tidal friction is gradually slowing Earth's rotation.

What are the amphidromic points of the world ocean and how are they determined?

A spring tide has a greater tidal range than a neap tide, and only occurs during the spring and summer months in each hemisphere.

When the sun and moon are in a line with the Earth, the:

The Origin of the Ocean

A History of Marine Science

Earth Structure and Plate Tectonics

Ocean Basins

Ocean Sediments

Water

Atmospheric Circulation

Ocean Circulation

Waves

Coasts

Life in the Ocean

Pelagic Communities

Benthic Communities

Uses and Abuses of the Ocean

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Exam 10: Tides

Tides caused by the inertia and the gravitational force of the sun and moon are called:

Which body has the greatest influence on ocean tides?

Tidal bulges are formed as the moon's gravity pulls the surface of the ocean towards the moon.

How can tidal energy be used by humans?

A low tide corresponds to the trough of the wave.

There can only be one high tide and one low tide per tidal day for any given area.

The time between high and low tide when the current changes direction is called:

A tide pattern of one high and one low each day describes a:

Most of the energy from the daily rise and fall of the tides comes from:

The height of the ocean averaged over a few years' time is called:

The rise and fall in sea level as a tide crest approaches and passes will cause a(n):

World-wide, the most common type of tides are:

Tractive forces:

Which of the following statements is FALSE concerning a lunar day?

The longest of all ocean waves are called:

Tides are long waves that are generated by gravity and inertia.

Tidal friction is gradually slowing Earth's rotation.

What are the amphidromic points of the world ocean and how are they determined?

A spring tide has a greater tidal range than a neap tide, and only occurs during the spring and summer months in each hemisphere.

When the sun and moon are in a line with the Earth, the:

The Origin of the Ocean

A History of Marine Science

Earth Structure and Plate Tectonics

Ocean Basins

Ocean Sediments

Water

Atmospheric Circulation

Ocean Circulation

Waves

Coasts

Life in the Ocean

Pelagic Communities

Benthic Communities

Uses and Abuses of the Ocean

Filters