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14
Science
Undergraduate 2
11/12/2010

Additional Science Flashcards

 


 

Cards

Term
What are forced waves?
Definition

 

Waves that are never free of the forces that cause them.

Term

 

What are Tides?

Definition
Periodic, short term changes in shoreline height of the ocean surface at a particular place caused by the gravitational force of moon and sun and the motion of earth.
Term

 

What is a Storm Surge/Storm Tides?

Definition
An abrupt bulge of water driven on shore by a tropical cyclone or frontal storm.
Term

 

What are Tsunamis?

Definition
Long-wavelength, shallow water, progressive wave caused by rapid displacement of ocean water.
Term

 

What is a Seiche/standing wave?

Definition
Water rocking back and forth at a specific resonant frequently in a confined area.
Term

 

Explain the dynamic theory of tides

 

Definition

Characteristics of ocean tides based on celestial mechanics and the characteristics of fluid motion; centrifugal force of the Earth’s rotation reinforced by the gravitational attraction of the moon causes two bulges on the ocean surface, one toward and one opposite the moon.

 


 

Term

 

How often do Semidiurnal tides occur?

Definition

 Twice in a lunar day

 

 

Term


What are Mixed tides?

Definition
A tidal pattern of significantly different heights through the cycle
Term
Give Example of forced waves?.
Definition
Tides, Wind
Term
What causes Tsunamis?
Definition
Tsunami generated by vertical movement of Earth along faults are called Seismic wave.
Term
How often do
diurnal tides occur?
Definition
Once each lunar day
Term
What is a Node?
Definition
Position in Seiche where water moves sideways, not up or down
Term
Can Storm Surges be considered a wave?
Definition
No, 1 Crest only.
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