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Chapter 8 Lesson 2
Oceans
| Question | Answer |
|---|---|
| the periodic rise and fall of the ocean's surface caused by the gravitational force between Earth and the Moon and between Earth and the Sun | tide |
| occurs when Earth, the Moon, and the Sun form a right angle; has the lowest tidal range | neap tide |
| the average level of the ocean's surface at any given time | sea level |
| a wave that forms when an ocean disturbance suddenly moves a large volume of water | tsunami |
| occurs when Earth, the Moon, and the Sun form a straight line; has the largest tidal range | spring tide |
| the difference in water level between a high tide and a low tide | tidal range |
| the highest part of a wave | crest |
| the lowest part of a wave | trough |
| the vertical distance between the crest and the trough | wave height |
| the horizontal distance from crest to crest or from trough to trough | wavelength |
| the currents formed by wind blowing over the surface of water | surface waves |
| a wave that forms when an ocean disturbance suddenly moves a large volume of water | tsunami |
| the average level of the ocean's surface at any given time | sea level |
| the periodic rise and fall of the ocean's surface caused by the gravitational force between Earth and the Moon and between Earth and the Sun | tides |
| the difference in water level between a high tide and a low tide | tidal range |
| a tide that has the largest tidal range | spring tide |
| a tide that has the lowest tidal range | neap tide |
| The_________ is the highest part of a wave, and the _________ is the lowest part. | crest & trough |
| The _________ distance between the crest and the trough of a wave is the wave height. | vertical |
| Surface waves are the currents formed by _________ over the surface of water. | wind blowing |
| _________ are the periodic rise and fall of the ocean's surface caused be the ___________ force between Earth and the Moon and between Earth and the Sun. | tides & gravitational |
| The tidal range is the difference in water level between __________ and _________. | a high tide & a low tide |
| A spring tide is a tide that has the largest _________ and occurs when Earth, the Moon, and the Sun form a ____________. | tidal range & straight line |
| A ______ tide is a tide that has the lowest ___________ and that occurs when Earth, the Moon, and the Sun form a right angle. | neap & tidal range |
| The motion of the water particles in a wave is circular | True |
| breaker | a wave that breaks when the wave base can no longer support the crest |
| Which disturbances can cause a tsunami | An underwater earthquake, tectonic plates colliding, a landslide, a volcanic eruption, ice breaking away from a glacier. |