Wave and Tide Changes
What happens to wave height the closer you get to shore?
It increases.
What are tides?
Tides are the daily rise and fall of Earth's waters on its coastline.
What causes a tsunami?
earthquake
plate movement
volcanic eruption
underwater landslide
What is the highest part of a wave called?
Crest
What happens to the speed of a wave the closer it comes to shore?
It decreases
What causes tides?
the gravitational pull of the moon and sun.
How many destructive tsunamis are generated worldwide each year on average?
One or two
What is the lowest part of the wave called?
Trough
What is a wave?
A wave is the movement of energy through water.
What moon phases create a neap tide?
First and Third Quarter Moon
When are the tidal changes the greatest? (greatest high and low tide)
when the sun, earth, and moon are in alignment.
What is the first sign of a tsunami that you should look for?
How do you determine a waves height?
Look at the distance from trough to crest.
What is one factor that impacts wave height?
wind speed
wind duration
fetch
What phases of the moon create the greatest tidal changes?
Full moon and new moon.
What ocean posses the most risk for tsunamis?
The pacific ocean
What is the difference between waves and tides?
waves are created by wind transferring energy to water. Tides are created by the gravitational pull of the moon and sun on the earth.
Where does the energy of a wave go?
The energy of a wave moves towards the coast.
What happens to the water particles the deeper you go in the ocean?
the water particles move in smaller circles.
What is a neap tide?
The Moon and Sun are at right angles to each other. Their gravity pulls on the oceans in different directions so the highs and lows are not as great. Neap tides have the smallest tidal range.
Where in the world is the Tsunami Warning Center where large earthquakes reported?
Honolulu, Hawaii
What happens wavelength the closer you get to shore?
It decreases.