# Why the Tides Increase Earth-Moon Distance

• kciweli
In summary, the tide force between Earth and the moon causes a gradual increase in the distance between them due to the transfer of angular momentum and energy. However, relying on external sources for information may not always be reliable and a helpful, summarizing answer would be more beneficial for non-native English speakers.
kciweli
why tide force makes distance between Earth and moon longer?

The problem with that sort of answer is that Wikkers is constantly being slagged off by this Forum as being unreliable. What is an uninformed questioner supposed to do? Surely what is needed here is at least a basically helpful, summative, answer and not just a referral to an outside source.
It might be obvious from the wording of the question that the questioner, here, does not have English as a first language and may need a little gentle help.

## 1. Why do the tides cause an increase in the Earth-Moon distance?

The tides cause an increase in the Earth-Moon distance due to the tidal force, which is the gravitational force exerted by the Moon on the Earth's oceans. As the Earth rotates, the tidal force causes a bulge of water on the side of the Earth facing the Moon, and a bulge on the opposite side. This bulging effect creates a slight elongation in the Earth's shape, causing it to move away from the Moon and increase the distance between the two bodies.

## 2. How much does the Earth-Moon distance increase due to tides?

The Earth-Moon distance increases by about 3.8 centimeters per year due to tides. This may seem like a small amount, but over millions of years, this can add up to a significant distance.

## 3. Will the Earth eventually move away from the Moon completely?

No, the Earth will not move away from the Moon completely due to tides. While the distance between the two bodies is increasing, it is also being counteracted by the Earth's rotation slowing down. Currently, the Earth's rotation is slowing down at a rate of about 1.4 milliseconds per century, which means the Earth and Moon will eventually reach a stable distance.

## 4. How does the Earth-Moon distance affect the tides?

The Earth-Moon distance does not directly affect the tides. The tides are primarily caused by the gravitational force of the Moon and its position relative to the Earth. However, the distance between the two bodies can affect the intensity of the tides, with a further distance resulting in weaker tides.

## 5. Will the increase in Earth-Moon distance have any noticeable effects on Earth?

The increase in Earth-Moon distance will not have any noticeable effects on Earth. As mentioned before, the change in distance is very small and occurs over a long period of time. Additionally, the Earth and Moon will eventually reach a stable distance, so there will not be any significant long-term effects on Earth.

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