Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
20 Cards in this Set
- Front
- Back
|
def. of waves |
a periodic disturbance of the particles of a substance that may be propagated without net movement of the particles, such as in the passage of undulating motion, heat, or sound.
|
|
|
what are the causing of waves? |
1. wind blow across ocean 2. the movement of fluids with diff, density |
|
|
what is -air -water interference
|
(wind blow across ocean) -ocean waves |
|
|
what is -water - water interference |
(the diff. in density layer) -internal waves |
|
|
what are type of waves when the wind blown across the ocean |
-ripples/ capillary waves -wavelength less 1.74 cm -ocean waves |
|
|
what are types of waves when there movement of fluids with diff. density |
-internal waves -water-water interference -height of waves more than 100 m |
|
|
internal waves are the result of ? |
-tidal movement -turbidity current =passing ships |
|
|
Energyin wave determine by ?
|
-Wind speed
-The length of time wind blow in one direction - The distance the wind blow in one direction |
|
|
what is gravity wave, |
if there are a lot of eng. wind blowing across ocean) -wavelength more 1.74 |
|
|
what are the causes of splash waves? |
=Coastallandslides
=Calvingicebergs |
|
|
what are the causes of Seismic seawaves or Tsunami
|
-Seafloor movement -Turbidity current -Volcanic eruptions -Fault slippage |
|
|
what are the causes of Tides
|
Gravitational pull of Moon and Sun
|
|
|
what is a Crest (wave characteristic)
|
the highest point on a wave
|
|
|
what is Trough, or valley (wave characteristic)
|
between two waves, is the lowest point
|
|
|
Wavelength is
|
the horizontal distance, either between the crests or troughs of twoconsecutive waves
|
|
|
wave period, T, represents
|
time tocomplete one full wave
|
|
|
Still water level =
|
zero energy level-->halfwaybetween crests and troughs
|
|
|
Wave Steepness, formula
|
waveheight (H) / wavelength (L) |
|
|
what will happen if Wave steepnessof > 1/7
|
Wave become to steep to support itself
=Wave breaks |
|
|
celerity formula |
Wind speed, C = wavelength/Time
|
