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8.2 homework
ocean waves and tides
| Question | Answer |
|---|---|
| nusatim | Tsunami |
| lsevlaee | Sea level |
| niepeatd | Neap tide |
| dite | Tide |
| rtigdalnea | Tidal range |
| ridestingp | Spring tide |
| 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 and trough to trough. | Wavelength |
| Th currents formed by wind blowing over the surface of water. | Surface waves |
| A wave that forms when ocean disturbance suddenly moves 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 and 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 |
| The horizontal distance from crest to crest or from trough to trough is the ? | Wavelength |
| Surface waves are the currents formed by ? over the surface of water. | Wind drags |
| A ? is a wave that forms when an ocean disturbance suddenly moves a large volume of water. | Tsunami |
| ? are the periodic rise and fall of the ocean's surface caused by 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 ? tides. | high low |
| A spring tide is a tide that has the largest ? range and occurs when Earth, the Moon, and the Sun form a ? line. | tidal straight |
| A ? tide is a tide that has the lowest ? range and that occurs when Earth, the Moon, and the Sun form a right angle. | neap tidal range |
| The highest part of a wave is the ? | crest |
| The lowest part of a wave is the ? | trough |
| Horizontal distance from crest to crest and from trough to trough is the ? | wavelength |
| Vertical distance between crest and trough ? | Wave height |
| The motion of the water particles in a wave is circular true or false? | True |
| Waves generally transport water true or false? | False |
| Describe the sequence of events that occurs when a wave reaches shallow water. | It drags along the bottom of the seafloor and slows down and decreases in size. |
| Define a breaker. | Breaks waves apart. |
| How shallow does water need to be for a breaker to form. | 100m or less. |
| What is a tsunami? | Wave formed by disturbance of large volume of water. |
| Which disturbance can cause a tsunami? | Underwater earthquake, landslide, volcanic eruption, or breaking ice from a glacier. |
| What causes tides? | Periodic rise and fall of the ocean's surface. |
| Why does the largest tidal range occur during spring tides? | Sun forms a straight line. |
| Why does a neap tide have the lowest tidal range? | Sun forms a right angle. |
| ? height is the vertical distance. | Wave |
| The ? length is the horizontal distance. | Wave |