Where do ocean waves get their energy? How is it transferred?
answer
Ocean waves get their energy from wind blowing across the surface of the water. When the wind contacts the water, some of its energy is transferred.
question
When does a wave cut cliff form and is it from erosion or deposition?
answer
wave-cut cliff and it forms when waves erode the base of the land along the coast and the rock above collapses
question
Why do hurricanes produce such large waves?
answer
During a hurricane, the wind blows very fast. This transfers more energy to the water and results in large waves.
question
When does a spit form and is it from erosion or deposition?
answer
D is a spit. It forms when longshore drift carries sediment down the beach and deposits the sediment at an obstacle.
question
When does a beach form and is it from erosion or deposition?
answer
C is a beach. It forms by deposition, when waves drop the sediment they carry on the shore.
question
Describe the effect of waves on the headland and predict how it will change over time.
answer
As waves approach the shore they bend toward it and crash into it and will over time erode the headland and even out the shoreline. As the headland erodes it may create sea arches or caves, and the sea arch can erode and collaspe which will leave a sea stack there.
question
Identify two forces through which ocean waves cause erosion.
answer
Abrasion and impact
question
How does an ocean wave change as it moves from deep water to shallow water?
answer
In deep water, only the water near the surface is affected by the wave. The wave causes the particles of water to move up and down as the wave passes, but they do not actually move forward. As the wave reaches the shallow water near the shore, the wave affects the water all the way to the bottom. As the wave drags along the bottom, the friction between the wave and the bottom slows the waves down and the water begins to move forward with the wave.
question
How does a sea stack form and is it from deposition or erosion?
answer
A is a sea stack. It forms when waves erode a sea arch and the arch collapses.
question
How does a barrier beach form and is it from deposition or erosion?
answer
E is a barrier beach. It forms by deposition, when sand carried by incoming storm waves piles up parallel to the shore and above sea level.
question
As waves repeatedly hit a beach, some of the beach sediment moves down the beach with the current, in a process called ______.
a.
longshore drift
b.
beach spreading
answer
A. longshore drift
question
Headlands are formed through wave deposition.
T or F
answer
False
question
A spit is formed through wave deposition.
True or False?
answer
True
question
The energy that produces ocean waves comes from
a.
the rise and fall of the tides.
b.
rivers flowing into the ocean.
c.
wind blowing across the water's surface.
d.
rock falling into the ocean along the shore.
answer
C. wind blowing across the water's surface
question
Where a coastline turns and interrupts longshore drift, sand may be deposited in a fingerlike landform called a
a.
spit.
b.
barrier beach.
c.
sandbar.
d.
headland.
answer
A. spit
question
Ocean waves contain energy that is transferred to them by ______ moving across the surface.
a.
wind
b.
sunlight
answer
A. wind
question
what is formed through longshore drift
answer
spit
question
Waves cause erosion through the processes of ______ and abrasion.
a.
chemical weathering
b.
impact
answer
B. impact
question
what is a piece of land that juts out into the sea
answer
headland
question
As the energy of a wave moves through the water, what happens to the water particles themselves?
a.
They are carried away.
b.
They sink to the bottom.
c.
They move up and down, but do not move forward.
d.
They slowly move backward.
answer
C. they move up and down but don't move forward.
question
Fiords are formed through wave erosion.
True or False
answer
False
question
Sandbars are formed through erosion by waves.
True or False
answer
False
question
As rock is worn away by waves on a coastline, the land that takes a little longer to wear away can form a:
a.
spit.
b.
fiord.
c.
headland.
d.
wave-cut cliff.
answer
C. Headland
question
what is left standing after the collapse of a sea arch
answer
a sea stack
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