Movement of Ocean Water

How are wave energy and water depth related?

• wave energy decreases as water depth decreases

• wave energy decreases as water depth increases

• wave energy remains constant as water depth changes

• wave energy changes as water depth remains constant

What does a surface current do when it deflects?

• gains speed

• moves toward cold water

• meets another ocean current

• changes direction

What is the source of most ocean waves?

• the energy of ocean currents

• wind blowing across the water

• the movement of tectonic plates

• the gravitational pull of the moon

Using the diagram, which letter represents the WAVELENGTH of the wave?

• A

• B

• C

• D

Using the diagram, which letter represents the WAVE HEIGHT of the wave?

• A

• B

• C

• D

What is the wave speed if the wavelength is 20m and the wave period is 5s?

• 100 m/s

• 0.75 m/s

• 4 m/s

• 2 m/s

What type of tide is illustrated?

• Spring Tide

• Neap Tide

• Summer Tide

• Winter Tide

Which of the following is an interaction between the sun and the ocean that results in clouds forming near the beach with high humidity?

• energy from the sun causes precipitation over the ocean

• energy from the sun causes water to evaporate from the ocean

• light from the sun reflects off the surface of the ocean

• light from the sun decreases the amount of water vapor in the air over the ocean

Where is the densest sea water found?

• cold water, high salinity

• cold water, low salinity

• warm water, high salinity

• warm water, low salinity

A student visits a local seashore after school. She wonders what causes the ocean's tides. She looks up the information at the library on her way home. What information did the student find that correctly describes what causes ocean tides?

• the rotation of the Earth on its axis

• the gravitational pull of the moon and sun

• high winds

• differences in salinity