because of the earth and moon's magnetic field and gravitational pull
full moon
It is because that the same side of the moon is always facing us. It is only possible to see the other side of the moon by orbiting it.
That isn't the answer. The reason why only one side of the moon is visible from the surface of the Earth is that the moon always keeps one side facing the Earth, which requires it to rotate once for each revolution of its orbit.
About 50% of the Moon's surface is almost always in sunlight at any given time. However, due to the Moon's synchronous rotation, which keeps the same side facing Earth, only the near side is visible from our planet. The far side of the Moon also receives sunlight, but it is not seen from Earth. Hence, while 50% is illuminated, we only see half of that illuminated surface from our perspective.
it causes a high tide in the ocean
This is the first quarter phase. The moon looks half lit, half in shadow, but you actually can only see one quarter of the moons surface at this point (during a full moon, you would only be able to see half of the moons surface - the half that faces us).
Scientists can observe all of the moon, if they send an artificial satellite round the far side. For the rest of us, we can only see one side as the rotation period of the moon is the same as the time taken to circle the Earth; so it always shows the same side to us. There is a slight wobble though and we can see slightly more than half of the moons' surface.
The illuminated side of the moon is in excess of 250 degrees hotter than the other side. Only part of the moon faces the sun, which is the part I described as illuminated. The sun heats up the side that faces it and the moon does not have the protection of an Earth-like atmosphere.
The Moon's surface that faces Earth is called the near side. This side of the Moon is what we see from Earth and is the side that is always facing towards us due to its synchronous rotation with Earth.
Only during a lunar eclipse, which can only happen during a full moon. The visible phases of the moon are caused by it changing its position relative to Earth and the sun. The visible portion is the moon's day side; the side facing toward the sun. The unlit portion is the night side, facing away from the sun.
well its called the face or surface cause well that the only side we see and the other side is called the dark side so i hope i answer you question.
Because the sun is only on the right side of the moon.