3) Differentiate between apogee and perigee and briefly discuss the effect on tidal height when
perigee coincides with spring tide.
Bloom’s Taxonomy: Remembering/Understanding
Section: 9.2 How Do Tides Vary During a Monthly Tidal Cycle?
Essent’l Concept: 9.2 Explain how tides vary during a monthly tidal cycle
Global Sci Out: 8
4) Compare diurnal, semidiurnal, and mixed tidal patterns.
Bloom’s Taxonomy: Remembering/Understanding
Section: 9.4 What Types of Tidal Patterns Exist?
Essent’l Concept: 9.4 Compare the characteristics and coastal locations of the three types of tidal
patterns
OSLP: 1 The Earth has one big ocean with many features.
Global Sci Out: 8
5) Briefly describe the factors that produce the world’s largest tidal range in the Bay of Fundy,
Nova Scotia, in northeastern Canada.
Bloom’s Taxonomy: Remembering/Understanding
Section: 9.5 What Tidal Phenomena Occur in Coastal Regions?
Essent’l Concept: 9.5 Describe tidal phenomena that occur in coastal regions
OSLP: 1 The Earth has one big ocean with many features.
Global Sci Out: 8
31
6) Discuss the influence of the relative masses and distance between the two objects on tide-
generating forces.
Bloom’s Taxonomy: Applying/Analyzing
Section: 9.1 What Causes Ocean Tides?
Essent’l Concept: 9.1 Demonstrate an understanding of the forces that cause ocean tides
Global Sci Out: 8
7) How do centripetal forces and gravitation forces interact to produce the tides?
Bloom’s Taxonomy: Remembering/Understanding
Section: 9.1 What Causes Ocean Tides?
Essent’l Concept: 9.1 Demonstrate an understanding of the forces that cause ocean tides
Global Sci Out: 8
32
8) Discuss the relationship between the Earth’s rotation and the location of tidal bulges.
Bloom’s Taxonomy: Remembering/Understanding
Section: 9.1 What Causes Ocean Tides?
Essent’l Concept: 9.1 Demonstrate an understanding of the forces that cause ocean tides
Global Sci Out: 8
9) Describe the tides in an open-ocean basin.
Bloom’s Taxonomy: Remembering/Understanding
Section: 9.3 What Do Tides Look Like in the Ocean?
Essent’l Concept: 9.3 Discuss what tides really look like in the ocean
OSLP: 1 The Earth has one big ocean with many features.
Global Sci Out: 8
33
10) Describe the number of high and low tides in a lunar day, including the period, and any
inequality of diurnal, semidiurnal, and mixed tide types.
Answer: Theoretically, coastal regions on Earth should experience two high tides and two low
tides of equal heights during a lunar day. In practice, however, the various depths, sizes, and
shapes of ocean basins modify tides so they exhibit three different patterns in different parts of
the world. A diurnal tidal pattern has one high tide and one low tide each lunar day. These tides
are common in shallow inland seas such as the Gulf of Mexico and along the coast of Southeast
Asia. Diurnal tides have a tidal period of 24 hours 50 minutes. A semidiurnal tidal pattern has
two high tides and two low tides each lunar day. The heights of successive high tides and
successive low tides are approximately the same. Semidiurnal tides are common along the
Atlantic coast of the United States. The tidal period is 12 hours 25 minutes. A mixed tidal pattern
may have characteristics of both diurnal and semidiurnal tides. Successive high tides and/or low
tides will have significantly different heights, a condition called diurnal inequality. Mixed tides
commonly have a tidal period of 12 hours 25 minutes, but they may also exhibit diurnal periods.
Mixed tidal patterns are commonly found along the Pacific coast of North America.
Diff: 2
Bloom’s Taxonomy: Remembering/Understanding
Section: 9.4 What Types of Tidal Patterns Exist?
Essent’l Concept: 9.4 Compare the characteristics and coastal locations of the three types of tidal
patterns
OSLP: 1 The Earth has one big ocean with many features.
Global Sci Out: 8
34
Copyright © 2017 Pearson Education, Inc.
9.4 Visual Questions
1)
This wave formed on a river by a flood current is called a/an ________.
A) ebb tide
B) flood tide
C) seiche
D) tidal bore
E) tsunami
Bloom’s Taxonomy: Remembering/Understanding
Section: 9.5 What Tidal Phenomena Occur in Coastal Regions?
Essent’l Concept: 9.5 Describe tidal phenomena that occur in coastal regions
35
2)
The graph shown is an example of which of the following tidal patterns?
A) Diurnal Tidal Pattern
B) Mixed Tidal Pattern
C) Quadernal Tidal Pattern
D) Semidiurnal Tidal Pattern
E) Trimester Tidal Pattern
Bloom’s Taxonomy: Remembering/Understanding
Section: 9.4 What Types of Tidal Patterns Exist?
Essent’l Concept: 9.4 Compare the characteristics and coastal locations of the three types of tidal
patterns
OSLP: 1 The Earth has one big ocean with many features.
Global Sci Out: 3
36
3)
The graph shown is an example of a ________ tidal pattern.
A) diurnal
B) mixed
C) quadernal
D) semidiurnal
E) trimester
Bloom’s Taxonomy: Remembering/Understanding
Section: 9.4 What Types of Tidal Patterns Exist?
Essent’l Concept: 9.4 Compare the characteristics and coastal locations of the three types of tidal
patterns
OSLP: 1 The Earth has one big ocean with many features.
Global Sci Out: 3
37