Question 1

How do intertidal organisms separate themselves?

Accepted Answer

A)   Zones based on the substrate brought in from the tides
B)   Zones based on the amount of submergence or emergence in water
C)   Zones based on the height of the tides
D)   Zones based on the amount of nutrients brought in from the tides.E) None of the above
F) A) and B)

Question 2

What determines the velocity of a tidal wave?

Accepted Answer

A)   Ocean depth
B)   Gravity
C)   Trade winds
D)   Coriolis effectE) All of the above
F) A) and C)

Question 3

Tidal friction is gradually slowing Earth's rotation.

Accepted Answer

A) True 
 B)False

Question 4

Due to tractive forces, solar bulges are ____ in comparison to lunar bulges.

Accepted Answer

A)   larger
B)   smaller
C)   equal
D)   unable to affect tidesE) A) and B)
F) A) and C)

Question 5

What is the reference level to which a tidal height is compared to?

Accepted Answer

A)   Datum
B)   Amphidromic point
C)   Tidal range
D)   Bore pointE) B) and D)
F) B) and C)

Question 6

What is an example of a true tidal wave?

Accepted Answer

A)   Tsunami
B)   Tidal seiche
C)   Tidal bore
D)   Capillary waveE) All of the above
F) C) and D)

Question 7

Tides can be predicted years in advance to an accuracy of approximately 3 centimeters.

Accepted Answer

A) True 
 B)False

Question 8

What is an amphidromic point?

Accepted Answer

A)   A node in the center of the Earth
B)   A node in the center of an ocean basin
C)   A node in the center of the Earth-moon orbit
D)   A node that indicates the peak in a tidal wave's crestE) B) and C)
F) A) and D)

Question 9

What is the tidal datum in reference to in regions with semidiurnal mixed tides?

Accepted Answer

A)   Mean lower low water
B)   Mean low water
C)   Tidal range
D)   Mean tideE) B) and D)
F) None of the above

Question 10

There are over 140 factors that affect the generation and alteration of tides in the ocean.

Accepted Answer

A) True 
 B)False

Question 11

What is needed to calculate the speed and direction of tidal current while at sea?

Accepted Answer

A)   The shape of the ocean basin below
B)   The magnitude of gravitational forces and inertia
C)   The position of the amphidromic point
D)   All of these choicesE) A) and B)
F) A) and C)

Question 12

When do tidal currents reach their maximum velocity?

Accepted Answer

A)   Midway between slack water and high tide
B)   During the period of slack water
C)   Midway between high and low tide
D)   Midway between low tide and slack waterE) B) and D)
F) A) and D)

Question 13

How do various organisms utilize the tides? Can you think of examples of these?

Accepted Answer

Answer should include:
• Some organisms ...

Question 14

What type of current occurs during a high tide?

Accepted Answer

A)   Ebb current
B)   Flood current
C)   Slack water
D)   Tidal influxE) A) and B)
F) None of the above

Question 15

What is an ebb current?

Accepted Answer

A)   The rise in sea level as a tide crest approaches
B)   The rise in sea level as a tide trough approaches
C)   The fall in sea level as a tide trough approaches
D)   The fall in sea level as a tide crest approachesE) All of the above
F) A) and B)

Question 16

What has a large impact on the heights and patterns of tides?

Accepted Answer

A)   Climate
B)   Gravity
C)   Wavelength
D)   Basin topographyE) A) and B)
F) A) and C)

Question 17

What is the Earth's greatest distance from the sun?

Accepted Answer

A)   Apogee
B)   Perigee
C)   Aphelion
D)   PerihelionE) A) and B)
F) C) and D)

Question 18

The moon and Earth remain in a stable orbit due to their mutual gravitational attraction being offset by inertia.

Accepted Answer

A) True 
 B)False

Question 19

Large, enclosed bodies of water like the Mediterranean and Baltic seas are subject to large tidal ranges.

Accepted Answer

A) True 
 B)False

Question 20

When high or low tidal currents begin to change direction, it is called:

Accepted Answer

A)   Ebb water
B)   Flood water
C)   Slack water
D)   Stagnant waterE) A) and C)
F) None of the above

Exam 11: Tides

When high or low tidal currents begin to change direction, it is called:

Correct AnswerverifiedShow Answer

What is an amphidromic point?

Correct AnswerverifiedShow Answer

When do tidal currents reach their maximum velocity?

Correct AnswerverifiedShow Answer

Tidal friction is gradually slowing Earth's rotation.

Correct AnswerverifiedShow Answer

What is an example of a true tidal wave?

Correct AnswerverifiedShow Answer

Large, enclosed bodies of water like the Mediterranean and Baltic seas are subject to large tidal ranges.

Correct AnswerverifiedShow Answer

Tides can be predicted years in advance to an accuracy of approximately 3 centimeters.

Correct AnswerverifiedShow Answer

The moon and Earth remain in a stable orbit due to their mutual gravitational attraction being offset by inertia.

Correct AnswerverifiedShow Answer

What is the tidal datum in reference to in regions with semidiurnal mixed tides?

Correct AnswerverifiedShow Answer

What type of current occurs during a high tide?

Correct AnswerverifiedShow Answer

What is needed to calculate the speed and direction of tidal current while at sea?

Correct AnswerverifiedShow Answer

What is the reference level to which a tidal height is compared to?

Correct AnswerverifiedShow Answer

How do intertidal organisms separate themselves?

Correct AnswerverifiedShow Answer

What is an ebb current?

Correct AnswerverifiedShow Answer

Due to tractive forces, solar bulges are ____ in comparison to lunar bulges.

Correct AnswerverifiedShow Answer

What determines the velocity of a tidal wave?

Correct AnswerverifiedShow Answer

What is the Earth's greatest distance from the sun?

Correct AnswerverifiedShow Answer

There are over 140 factors that affect the generation and alteration of tides in the ocean.

Correct AnswerverifiedShow Answer

What has a large impact on the heights and patterns of tides?

Correct AnswerverifiedShow Answer

How do various organisms utilize the tides? Can you think of examples of these?

Correct AnswerverifiedAnswer should include:• Some organisms ...View AnswerShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Answer should include:
• Some organisms ...
View Answer