if it stops and recedes at the same spot, i think there would be no high tides and low tides on our weather forecasts. nevertheless, wave movements are dictated by the gravitational pull of the earth towards the moon. you’ll see that there is a relation between the schedule of moon appearances for the whole month with the height of waves. i hope this help. thanks!

The tides themselves are the result of the Earth and the Moon both attempting to pull the water in different directions.

The Moon’s gravity is only 1/10000000 as strong as that of the Earth, so the Earth is able to hold onto everything on it’s surface. However, the ocean is an exception. Since the Ocean is constantly moving anyway, the Earth isn’t able to hold onto it as well, due primarily to the centrifugal force created due to the spinning of the Earth.

Since the Earth doesn’t have a strong grip on the Ocean, the Moon’s gravity is able to pull at the Ocean. This pull, combined with the weaker downward pull of the Earth’s gravity, causes the Ocean to come ashore as tides. These tides are synchronized and will come ashore in the same spot each time, since the Moon’s gravity pulls with the exact same force each time.

How far the tides come ashore is dependant on the location of the Moon in relation to the Earth and the Sun. Since the Moon is constantly circling the Earth, the pull on the Ocean will change as well. So, depending on where the Moon is at the time, the tides will come up at a certain point at a specific time of the day, and then change to a different point later in the day.

To give you a simple answer, the simultaneous act of the Moon’s gravity pulling upward and the Earth’s gravity pulling downward causes the ocean to come ashore at a specific point on the beach.