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science test #2 Q&A

Q&A science test 2

QuestionAnswer
when can you see Earth's umbra? during a solar eclipse
what causes tides? the sun and the moon pulling on water
why does the moon cause two tidal bulges? the moon's gravitational force and inertias (resistance)
spring tide vs neap tide? spring tide- moon, sun and earth align in straight lines and tides have biggest contrast of highest to lowest. occurs during full and new moons neap- sun and earth line up in right angles. happened during first quarter moon and third quarter
how many times a month is there a neap tide? two
how many times a month is there a spring tide? two
how many high tides a day? two
how many low tides a day? two
what kind of tide is created when there's the biggest contrast of high and low tides? spring
what kind of tide is it when there's low contrast between high and low tide? neap
when water flows toward the far side of Earth it creates a high or low tide? high
does it matter which way the sun, Earth and moon line up when a spring tide occurs? no. as long as they are all lined up in a row the spring tide will occur and highest tide will have big contrast with lowest tide
what kind of tide occurs when sun is at right angles with Earth and moon? neap
what do the differences in the moon's and sun's pull on different sides of the Earth cause? tides
what kind of tide occurs when sun, Earth and moon are in a line? spring
when water flows toward the high tides, it cause what kind of tide halfway between them? low
approximately hour many hours is a tides cycle of rising and falling ocean water? why is it a little over then one day? (1 hour over) 12.5 hours
what kind of moons produce spring tides? new moons and full moons
what kind of moons produce neap tides? first quarter moons and third quarter moons
does the sun's gravity affect tides? yes
what do changes in position of Earth, sun and moon cause? the kind of tides that occur. spring and neap tides depend on positions of Earth,sun and moon.
what mainly causes tides to happen? the moon and sun pulling on the Earth causes tides to happen.
Created by: gott
 

 



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