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In very simplistic terms, as the moon passes over the earth the moon's gravity, pulls on the Earth below. The moon's gravity is too weak to move anything solid and small, but when the Moon's small amount of gravity is exercised over a large area such as an ocean, then, as the water moves easily, the moon's gravity has a noticeable effect. So, as the moon pulls on the surface of the ocean, it moves that bit of the surface of the ocean, slightly closer to the moon. This causes a rise in the level of the ocean at that point, which means that along the shoreline, the water recedes (you can test this with a bucket full of water in a basin full of water. If you raise up the bucket of water as if the water in the bucket was being pulled up by the moon, you will see the water level in the basin will drop i.e. the tide goes out). Once the moon passes the ocean, the water drops back down again and so the tide along the shoreline floods back in. If there is no gently sloping beach where we can see the tide slowly going out, then coming back in again and we are instead watching from say a walled harbour, all we will see is that the tide goes down low, then rises high up the harbour wall. Hope this helps - KENN JOYCE
What else can I help you with?
How often in 24 hours does the tide rise and fall?
Tides typically rise and fall twice in a 24-hour period. This cycle of two high tides and two low tides is known as a semidiurnal tide pattern.
Is the size of all high tides the same?
Tides are the rise and fall of the sea level caused by the combined effects of the gravitational forces exerted by the Moon and the Sun and the rotation of the Earth. The heights of tides vary from seasons to seasons. So no, they are not all the same.
What do you call the cyclical rise and fall of sea level is called?
The periodic fluctuation of the sea is called tides.
Is there a high tide every day?
Yes, there are two high tides and two low tides each day. The gravitational pull of the moon and the sun causes the water levels to rise and fall cyclically, resulting in daily high and low tides.
Why do earth's oceans rise and fall in rise?
Earth's oceans rise and fall in tides due to the gravitational pull of the moon. As the moon orbits Earth, its gravitational pull causes bulges in the ocean water, resulting in high tides where the bulges occur and low tides in other areas. The sun also plays a role in tides, reinforcing the gravitational effects of the moon.
What is and area where rivers rise and fall with ocean tides?
an area where rivers rise and fall with ocean tides
How do tides go in order in a day?
Tides occur approximately every 12 hours and 25 minutes, with two high tides and two low tides in a day. This pattern is due to the gravitational pull of the moon and the sun on Earth's oceans, causing water levels to rise and fall cyclically.
How often do tides rise and fall?
At any give point, the time between High tide and Low tide has a mean time of 6 hrs 22 mins. and a few seconds. So in any 24 hour period ( midnight to midnight), there will be two high tides and one low tide, or one high tide and two low tides.
If you have been to a beach for a whole day then you have seen tides roll in and out. What causes Earth's high tides?
Earth's high tides are primarily caused by the gravitational pull of the Moon. The Moon's gravitational force creates bulges in the Earth's water, causing the water level to rise, resulting in high tides. High tides occur on the side of the Earth facing the Moon and on the opposite side due to the Moon's gravitational influence.
What has the moon got to do with the tides?
The gravitational pull of the moon on Earth's water creates bulges in the ocean's surface, causing high and low tides. As the Earth rotates, these bulges result in the cyclical rise and fall of water levels along coastlines, known as tides.
What causes the tides the rise and fall of sea water everyday?
The gravitational pull of the moon and the sun on the Earth's oceans causes the tides to rise and fall. The gravitational force creates bulges of water on the side of the Earth facing the moon and on the opposite side, leading to high and low tides.
How many high tides and low tides do most locations in a ocean have daily?
Most locations in the ocean experience two high tides and two low tides daily. This is due to the gravitational forces of the moon and the sun causing the water levels to rise and fall in a pattern known as the tidal cycle.
