Earth Science: Ocean Tides

Test Quiz

Questions on this quiz are based on information from
Earth Science: Ocean Tides.

1. What causes the ocean's tides?
a. Wind moving across the surface of the water
b. Energy from the Sun's rays
c. Gravitational pull of the Sun and Moon, and the rotation of the Earth
d. All of the above
e. None of the Above

2. What is a diurnal tide cycle?
a. A tide cycle that occurs twice a day
b. A tide cycle that occurs once a month
c. A tide cycle that occurs twice a week
d. A tide cycle that occurs once a day
e. A tide cycle that occurs three times a day

3. What do we call a high tide that occurs on the opposite of the Earth from the Moon?
a. Semi-diurnal
b. Antipodal
c. Sublunar
d. Neap tide
e. Mixed tide

4. What do we call the flow of water as the tide rises or falls?
a. Tidal current
b. Tidal river
c. Tidal stream
d. Tidal wave
e. Tidal movement

5. What is the tidal range?
a. The time it takes for a low tide to become a high tide
b. The time between high tides
c. The rate at which the tide changes
d. The speed of the tidal current
e. The difference in sea level between the low tide and high tide

6. What tidal current occurs when the tide is moving away from the ocean and towards the shore?
a. Flood current
b. Ebb current
c. Slack water
d. All of the above
e. None of the Above

7. What tidal current occurs exactly at high tide or low tide?
a. Flood current
b. Ebb current
c. Slack water
d. All of the above
e. None of the Above

8. What type of tide occurs when the sea level is at its lowest?
a. High
b. Low
c. Spring
d. Neap tide
e. Semidiurnal

9. What type of tide occurs when the tidal range is at its smallest?
a. High
b. Low
c. Spring
d. Neap tide
e. Semidiurnal

10. What type of tide cycle occurs twice a day?
a. High
b. Low
c. Spring
d. Neap tide
e. Semidiurnal


About this quiz: All the questions on this quiz are based on information that can be found on the Earth Science: Ocean Tides page at www.ducksters.com/science/earth_science/ocean_tides.php.

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