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How tsunamis work

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

What did the tide in 479 BC do Potidaea?

a)

The tide stayed the same.

b)

The tide retreated much farther than usual.

c)

The tide advanced much farther than usual.

2.

Their god Posiden did not save them, it was the phenomena of a...

a)

wave

b)

earthquake

c)

tsunami

d)

landslide

3.

Tsunamis, or tidal waves, are related to the tidal activity related to the forces of the sun and moon.

a)

True

b)

False

4.

Ocean waves, just like all waves, transfer...

a)

Energy

b)

Waves

c)

Water

d)

Sand

5.

What affects the size and speed of ocean waves?

a)

energy

b)

wind

c)

water

d)

wave

6.

What affects the size and speed of ocean waves? Mark all that apply.

a)

Volcanic eruption

b)

Submarine land slide

c)

Earthquake on the ocean floor

7.

When are tsunamis undetectable to humans?

a)

When they are close to shore

b)

When they are far from the shore

c)

All tsunamis are detectable to humans

8.

After a tsunami the water retreats and takes with it the debris.

a)

True

b)

False

9.

What are some ways humans have tried to protect the land from tusnamis?

a)

sea walls

b)

avoiding the beach

c)

learning how to swim

10.

When did the two tsunamis the Ted Ed talked about occurred?

a)

2003 and 2012

b)

2004 and 2011

c)

2002 and 2010

d)

2000 and 2011