1.4 Tsunamis Flashcards
1
Q
What is a tsunami?
A
A huge tidal wave
2
Q
How does a tsunami arise?
A
Earthquakes on ocean floor, waves
3
Q
Explain how a wave approaches the coast p1
A
The front decelerates, the water at the back takes over forsing the wave to increase height.
4
Q
Explain how a wave approaches the coast p2
A
It can appear to be low tide. It rolls like a Great Wall of water over land
5
Q
Usually a tsunami appears like
A
A sped up and stronger version of the tides
6
Q
How fats do tsunami waves move?
A
Lightning speed
