問題一覧
1
What is an example of a mechanical wave
Sound waves, water waves and seismic waves
2
define crest
a point on a surface wave where the displacement of the medium is at a maximum
3
Define solar tide:
gravity waves forced by periodic heating associated with the absorption of solar radiation in the atmosphere
4
List the wind speed that is categorized as a category 3 hurricane.
111-129 mph
5
Define wave train:
a group of waves of equal or similar wavelengths traveling in the same direction.
6
List examples of types of tides:
Diurnal, Semidiurnal, Mixed Semidiurnal; Continental Interference
7
What year did Hurricane Katrina occur
August 29, 2005,
8
East currents of cold water carry cold water
Subtropical eastern boundary
9
what is the defined as the difference between high and low tide
tidal range
10
define wavelength
the distance between identical points
11
How is the wave period expressed
seconds per wave.
12
Define tide:
Tides are the rise and fall of sea levels
13
define still water level
the level that the sea surface (at a given point and time) would adopt in the absence of wind waves.the level that the sea surface (at a given point and time) would adopt in the absence of wind waves.
14
49. ____________ is a force that attracts all objects with mass towards one another.
thermohaline circulation
15
Which term refers to the movement back and forth in a regular, repeating manner?
periodic motion.
16
__________ form as wind friction stretches the surface
Wind-driven waves, or surface waves
17
define amplitude
movement back and forth at a regular speed
18
what are tides?
the gravitational forces exerted on the earth by the moon, and to a lesser extent, the sun.
19
Define Brazil Current:
Brazilian Current is a warm current while the rest are cold currents.
20
What is the rotation that causes a force that pushes outward?:
Centrifugal force
21
define wave heights
the wave height of a surface of water waves is the difference between the elevations of a crest and a neighboring trough.
22
Wave diffraction
process by which wave energy spreads perpendicularly to the dominant direction of wave propagation
23
Define swell
Swell are waves (usually with smooth tops) that have moved beyond the area where they were generated.
24
Define high tide:
High tide is when water covers much of the shore after rising to its highest level
25
What is a typical wavelength of a tsunami
200 kilometers (120 miles)
26
Are longer wavelengths faster or slower than shorter wavelengths?:
shorter wave lengths are faster while longer wavelengths are shorter
27
List examples of MS Barrier Islands
Cat Island, Ship Island, Deer Island, Horn Island, Round Island and Petit Bois Island
28
List examples of waves that are not generated by wind
water. The gravitational pull of the sun and moon also cause waves to form, Seismic activity can cause a series of long-wavelength waves known as a tsunami, due to the displacement of large amounts of water.
29
Define tidal wave:
an exceptionally large ocean wave, especially one caused by an underwater earthquake or volcanic eruption.
30
where is energy absorbed at?
The surface of earth while some bounce back into space
31
Define Peru Current:
a cold, low-salinity ocean current that flows north along the western coast of South America.
32
define crest
A crest is a point on a surface wave where the displacement of the medium is at a maximum
33
wind is driven by?
The rotation of the earth and the incoming energy from the sun
34
Define low tide
the state of the tide when at its lowest level.
35
What is known as the wind blowing in a constant direction
Prevailing winds
36
currents are caused by winds and global weather patterns.
Surface currents
37
Define oscillation
movement back and forth at a regular speed.
38
define wave length
the distance between identical points
39
define trough
A trough is the opposite of a crest, so the minimum or lowest point in a cycle
40
Wave Period
The time it takes for two successive crests (one wavelength) to pass a specified point
41
Define sea
the expanse of salt water that covers most of the earth's surface and surrounds its landmasses.
42
Define tidal range:
Tidal range is the difference in height between high tide and low tide.
43
What are the 2 main types of currents:
surface currents and deep ocean currents.
44
When does a spring tide occur:
Spring tides happen just after every full and new moon
45
Define wind strength:
Wind speed describes how fast the air is moving past a certain point.
46
what are two type of waves
longitudinal and transverse
47
e speed of waves, wavelength, and ________ are inter-related
frequency and wavelengthfrequency and wavelength
48
What is another term for constructive interference
When two waves travel in the same direction and are in phase with each other, their amplitude gets added, and the resultant wave is obtained
49
define amplitude
the maximum amount of displacement of a particle on the medium from its rest position.
50
What percentage of the earth’s surface is covered by oceans:
more than 70 percent
51
Growth in wind generated waves is determined by:
wind speed, and the second factor is wind duration, or the the length of time the wind blows.
52
define trough
A trough is the opposite of a crest, so the minimum or lowest point in a cycle