2006-12-05 19:57:39 · 8 answers · asked by jervis 1 in Science & Mathematics ➔ Earth Sciences & Geology
The tidal forces of the Moon and the Sun acting on the Earth makes the tides: the maximum water level is called "high tide" or "high water" and the minimum level is "low tide" or "low water." . The sun and moon have strong gravitational forces which "pull" earth. The earth have strong gravitational force too. The sun produces less effect due to its distance to the earth.
In simplest term, the tides are result of the "tug of war" of forces of the moon (&sun) against the earth.
At the point right "under" the Moon (the sub-lunar point), the water is closer than the solid Earth; so it is pulled more and rises ; that is HIGH TIDES.
On the opposite side of the Earth, facing away from the Moon (the antipodal point), the water is farther from the moon than the solid earth, so it is pulled less and effectively moves away from Earth (i.e. the Earth moves more toward the Moon than the water does), rising as well but less; that is LOW TIDES.☺
2006-12-05 20:43:00 · answer #1 · answered by ♥ lani s 7 · 1⤊ 0⤋
because of the gravitational pull from the moon and sun, a Lunar day is 24 hrs and 50 minutes (that's why you just add an hour to next day, to predict high tide (roughly), other influencing factors are:
Wind- brings tide early or late
Apogee/perigee- How close the moon is to the Earth at that time of year
Appehelion/perihelia- How close the Earth is to the sun at a given time
Barometric pressure- a low pressure will increase tide
Symmetry- certain planets line up in configuration, this increases tides, and lowers them periodically higher than normal.
The most influence is by the wind, on a reg. basis.
2006-12-06 04:13:50 · answer #2 · answered by Anonymous · 0⤊ 0⤋
The tides relate to the moon and sun. When the sun and the moon are on the same side then the gravitational pull is from both. The side of the earth closest to the moon will have highest tides and the opposite side will have lowest tides.
When the earth is between the moon and the sun the gravitational forces are working against their selves and the moon side will have the lowest high tides and the sun side will have the highest low tides.
2006-12-06 04:05:47 · answer #3 · answered by ccrstitch2003 2 · 1⤊ 0⤋
the shores have High and low tides only in the oceanic shores. the reason for the tide is the moon's gravitational pull. I'm oretty shure that highe tide is on the opposite side of the earth than the moon is.
2006-12-06 07:50:18 · answer #4 · answered by dan p 2 · 0⤊ 0⤋
This is a combination of the earth's rotation and the attraction of the moon and sun.
The moon attracts the water in the oceans and because the earth rotates this causes the tides.
The sun does the same thing but this effect is less strong.
Imagine pulling on some elastic material. Pulling along the length makes it less wide. Pulling along the width makes is shorten.
The cycle of the moon around the earth last 1 month and during every month the sun and moon are aligned twice. (Pulling along the same axis.) This causes a extra high and low tide.
Also twice a month they are pulling in different directions an you have a 'dead' tide. (perpendicular axes)
2006-12-06 04:08:47 · answer #5 · answered by anton3s 3 · 1⤊ 0⤋
moon + gravity = tides because the moon pulls wader up at times ( high tide ) tq tq i will absept th nobel prize
2006-12-06 05:03:45 · answer #6 · answered by mr.yan_dao 1 · 0⤊ 0⤋
the moon"s gravity causes the tides
2006-12-06 04:00:32 · answer #7 · answered by Anonymous · 0⤊ 0⤋
because of the moon gravitational force
2006-12-06 03:59:08 · answer #8 · answered by AnSwERinho 3 · 1⤊ 0⤋