Chapter 9
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20 terms
Terms | Definitions |
|---|---|
 Resultant tidal forces are produced by __________. | the difference between centripetal and gravitational forces |
| The reason that a lunar day is _________ a solar day is that __________________. | longer than; the Moon is also moving in its orbit around Earth |
| A high tide is at 3:00 p.m. on a particular day. On the very next day, a high tide would most likely be expected at __________. | 3:50 p.m. |
| Of the following phases of the Moon, which one is associated with the smallest tidal range? | quarter moon |
| Which of the following statements about the positions of the Earth-Moon-Sun system during a solar eclipse is FALSE? | Neap tide conditions are experienced. |
| Destructive interference between the solar and lunar tidal bulges occurs during __________. | neap tide |
| Syzygy occurs during __________. | spring tides |
| The gravitational force between two bodies is dependent on mass and distance, with distance being the greater influence of the two. | True |
| In a simple model of the tides as tidal bulges, the strongest gravitational influence = maximum seawater bulge = highest tide. | True |
| The best time to go collecting at a tide pool (when there would be the lowest low tides) is during neap tide conditions. | False |
| The greatest tidal range on Earth occurs during the times when the Moon is at ___________ and the Sun is at ___________. | perigee; perihelion |
| A tidal pattern with two nearly equal high tides and two nearly equal low tides per lunar day is called a __________ tidal pattern. | Semidiurnal |
| A tidal pattern with one high tide and one low tide per lunar day is called a __________ tidal pattern. | Diurnal |
| What tidal pattern occurs along the West Coast of the United States? | Mixed |
| Under ideal conditions for the West Coast of the United States, the time interval between a high tide and the very next high tide would be __________. | 12 hours, 25 minutes |
| What would tides be like on Earth if the Moon did not exist? | Tides would occur, but the tidal range would be reduced. |
| In the open ocean, tidal currents follow which of the following patterns? | Rotary |
| Water that is flowing out of a bay as a result of a change in the tides is called __________. | an ebb current |
| What is a tidal bore? | a true tidal wave caused by an incoming high tide that moves up certain rivers |
| Which of the following statements about tidal power plants is FALSE? | There are no existing tidal power plants anywhere in the world. |
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