AST101 lecture 7
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7 Terms
what is the primary cause of tides?
the moon’s gravity pulling water towards it
how many high tides are there in a day?
two
why are the tides slightly offset from the moons position in the sky?
it takes time for the water to respond to the moon’s gravity
what is a spring tide and when do they occur?
a larger high tide than normal during a full or new moon
what is a neap tide and when do they occur?
a smaller tide than normal during a quarter moon
what is the cause of spring and neap tides?
the suns gravity working with or cancelling out the affect the moon has on tides
what is tidal locking
the earth’s tidal force is stronger than the moon’s, meaning that over time the moon became “locked” in place and always faces the same direction with respect to the earth