what causes high and low tide?

Answer 1

The tidal forces of both the Moon AND the Sun.

Answer 2

Many things affect the tidal change around the earth.

Firstly there is the obvious one - the moon! (this is also the main one)

Secondly there is the shape and spin of the earth - because the earth does not have a completely perfect spin (it wobbles on its main axis of rotation) this also affects the tides, which is why you get "higher" high tides and "lower" low tides.

The direction of the wind also has an impact on the height of a tide along with the amount of salt in the water - because more salt means a higher density! This is also true for the temperature of the water - warmer water can lead to a higher tide. And the sun has a small gravitational impact.

The main two impacting factors are the moon and the wind as they have a largest impact on the tides height.

Hope this helps!

Oh and if your after a classic answer try this one!!!

"you mommas so fat, every time she goes to the beach it's high tide!"

Answer 3

In this diagram, you can see that the moon's gravitational force pulls on water in the oceans so that there are "bulges" in the ocean on both sides of the planet. The moon pulls water toward it, and this causes the bulge toward the moon. The bulge on the side of the Earth opposite the moon is caused by the moon "pulling the Earth away" from the water on that side.

If you are on the coast and the moon is directly overhead, you should experience a high tide. If the moon is directly overhead on the opposite side of the planet, you should also experience a high tide.

During the day, the Earth rotates 180 degrees in 12 hours. The moon, meanwhile, rotates 6 degrees around the earth in 12 hours. The twin bulges and the moon's rotation mean that any given coastal city experiences a high tide every 12 hours and 25 minutes or so.

Answer 4

The gravitational pull of the moon causes the mass of water to be pulled towards it causing a high tide. The body of water on the opposite side of the earth also bulges due to the earth being pulled towards the moon – imagine the body of water over the whole earth as being oval with one high towards the moon and one high opposite. As the earth rotates we get two tides per day – if it was just the moon pulling on the water as most people think we would only get one tide per day!. We also have some interaction between the Sun and the Moon, if they are perpendicular, ie Pulling against each other, the pull on the body of water is less so we have ‘Neap tides’ if they are working together to pull the body of water we have higher than normal tides called Spring tides ….. The position of the moon in its orbit will also determine the amount of gravitational force on the body of water and thus the extent of the tide.

Answer 5

Well it seems everyone knows it's the Moon that causes it, but not why. Each planet (and each individual object) in the universe has a gravitational pull (even you do!). Each object attracts other things to it, and the larger the object, the larger the gravitational pull. That's why the earth and all the other planets orbit around the sun, which is bigger than all the planets, and that's also why the Moon orbits around the Earth, because the Earth is bigger than the Moon. If the Moon were slightly further away from Earth, and slightly closer to another planet bigger than Earth, it would start to move toward that planet instead. Anyway, the Moon still has a huge gravitational pull of it's own, and although this pull isn't enough to "move the Earth" (although it does cause the Earth to "wobble" slightly on it's orbit), it is enought to literally "drag" the oceans (being less solid than rock of course!) back and forth as it spins around the earth, causing the tides to rise and fall as it does so.

Answer 6

high tide occurs as a result of the gravitational force(in the form of a pull) on the earth , as you may know there is always a form of gravity exerted amongst celestial bodies within space and the planet earth is not left out neither is the moon left out and its the effect of the gravitational force that causes high tide. i guess the low tide is just the natural level of the waters

Answer 7

High and low gravitational attraction between moon and earth on full moon and no moon days causes high and low tide.

Answer 8

The moons gravitational pull moves the seas and causes tides.

Answer 9

The Moon

Answer 10

The Moon

Answer 11

The moon's gravitational pull causes high tides, and therefore the lack of (i.e. moon not above you or on the otherside) causes low.