What causes the moon to change it size and what effect does this have on earth?
The moon circles the Earth on a schedule that is approximately 28 days. As it does so the relationship between the Earth and the Sun changes and sunlight shines on different parts of the moon's surface, giving it a different appearance from Earth. Just as the Moon is attracted to Earth by gravity, the Earth too is attracted to the Moon. The oceans are affected by the Moon and the water rises toward the Moon, giving us tidal variations.
The moon influences the Earth by pulling the Earth towards it. This effect produces about 1 m rise of the oceans on one side of the Earth (the side closest to the moon). This causes the tides and when in line with the Sun both gravity from the Sun and the moon effect the Earth adding up and causing a much larger pull which causes the high tides.
It's mainly the changing position of the Moon as it orbits the Earth. (Also there is a smaller effect caused by Earth and Moon orbiting the Sun.) The Moon's shape appears to change because we see different amounts of the Moon's sunlit hemisphere. For example, we can see the "Full Moon " only when the Earth is between the Moon and the Sun.
It is not the gravitional effect ON the moon, but the gravitional effect OF the moon. The moon pulls on the earth, just as the earth pulls on the moon. The pull of the moon causes water to be drawn towards the moon, and forms a "bump" in the level of water. As the earth rotates below the water, the raised part of the water has the effect of making the water get deeper, then…
The moon causes the sea to cycle through tides by tugging the water into sort of an oblong circle and spinning it around the earth. The Sun causes the moon to change "phases" much as it causes the Earth to change days. The moon just turns much slower than the Earth and ends up never actually turning its "face" away from us.
The Moon effects the Earth because it makes the tides be pulled, but gravity pulls it back.So when the Moon is facing the west side of the Earth, it bulges out, and on the other side it makes it stay the same. It might also effect the weather. It also causes high and low tides because of the magnetic pull from Earth to the Moon.
The moon does not change shapes. The shadow of the earth on the moon changes how much of it you can see. Another viewpoint: I think this question is about the "phases" of the Moon. The Moon only appears to change shape during its different phases. Exactly one half of the Moon is in sunlight at any time. The phases occur because the Moon orbits Earth. That causes us to see different amounts of the…
The moon does have an effect on Earth's weather, but apparently no one knows for certain how. The moon causes atmosphere tides, just as the moon causes oceanic tides. It appears that you can expect colder temperatures when the moon is full or new due to this effect. When the moon is full or new, it causes a bulge in the atmosphere, just as it causes a bulge in the Earth's oceans. When the moon…
When the moon is between the earth and the sun, blocking the sun's light (from the perspective of earth). A lunar eclipse is when the earth blocks light from getting to the moon, and can cause the moon to temporarily change color because of the effect on earth's atmosphere on the light that does get to it.
The Earth-Moon gravitational interaction that produces the tides is gradually slowing the Earth's rotation. So, the Earth loses angular momentum. That causes the Moon to gain angular momentum. The acceleration of the Moon causes its orbit to slowly get larger. See "related links" below. In the link, look for the headings "Tidal Braking of the Earth" and "Lunar Recession".
The Sun always shines on half of the Moon. As the Moon circles the Earth, we Earthlings see a the near half of the Moon, but we can't always see all of the illuminated half. This difference in direction - the Sun shines from the Sun but we see from the Earth - causes the effect of "phases" of the Moon.
Actually it is not the rotation of the earth but the orbit of the moon around the earth that causes the phases of the moon. The moon's relationship in it's orbit with regard to the sun is what causes the phases to change. When the moon is between the earth and the sun, it is in a "new moon" phase because the only side of the moon that is lit with sunshine is the far…
The moon looks like it changes shape because as it orbits the Earth and we only see one side of the moon, sunlight hits the part of the moon that we see at different angles - therefore making the moon "change shape". We also can only see the sunlit side of the moon from Earth and that is also another factor to the moon's apparent shape.