Tsunami!!! 1 . Which of the following is not true of tsunamis and tidal waves? A

Question

Tsunami!!!

1. Which of the following is not true of tsunamis and tidal waves?

A.Tidal waves are caused by the moon and tsunamis are caused by earthquakes.

B.Tidal waves are found in the Pacific and Indian oceans while tsunamis are located in the Atlantic.

C.Tidal waves and tsunamis have much in common, but tsunamis are much larger and cause more destruction

D. Tidal wave is just another inappropriate term for tsunami

2. Why does the convergent palte boundary cause the most tsunami's?

A. They typically are below the most amount of water

B.when the plates slip past each they change the direction of the water which causes a tsunami

C. it causes horizontal motion

D. it causes vertical motion

3. How early can we predict a tsunami's arrival?

A. days before it happens, by predicting the earthquake or eruption

B. a few hours before it happens, by predicting the earthquake or eruption

C.minutes or hours before, as the propogated wave is detected

D. Only when we see the wave do we know it's going to happen

4. Which ocean is most likely to have a tsunami?

A. Indian ocean

B. Pacific ocean

C. Atlantic ocean

D. Arctic ocean

5. Warning systems for tsunami's have been around since 1946, but these were not the best methods of detection. What is current employed for tsunami detection?

A. Coastal tide gauges

B. Deep ocean tsunami detectors

C. Seismoteters near fault zones

D. Hilo gauge in Hawaii

6. Which factor does NOT significantly impact the tsunami wave height?

Wind speed

Earthquake magnitude

Vertical displacement

Coastal Geometry

7. The wavelength of a tsunami grows as it approaches the coast. Which of the following does NOT change as the tsunami approaches?

A. Amplitude

B. Wave height

C. Wave periods

D. Energy

Wind speed

Earthquake magnitude

Vertical displacement

Coastal Geometry

Explanation / Answer

1) B.Tidal waves are found in the Pacific and Indian oceans while tsunamis are located in the Atlantic

Note: Tidal waves are found in all oceans,tsunamis can occur also in all ocenas.

2) D. it causes vertical motion

The vertical motion at the convergent plate boundary causes the most tsunami's as it generates horizontal wave motion.

3) D. Only when we see the wave do we know it's going to happen

Tsunami happens suddenly,we cannot predict when it will occur.

4) B. Pacific ocean

Pacific Ocean has many number of  subduction zones,so pacific  ocean is most likely to have a tsunami.

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