UNIVERSE
SOLAR SYSTEM FORMATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The moon is closer to Earth than the sun so its gravitational pull is more.
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It does orbit the sun because of Earth’s orbit around the sun.
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The Earth has a greater mass than the sun.
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Earth’s magnetic field is so strong it pulls the moon close.
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Detailed explanation-1: -Short answer: Because the Moon is much closer to the Earth than it is to the Sun.
Detailed explanation-2: -Because the Earth is revolving around the Sun at the same rate you are, you don’t feel the extra “pull” from the Sun. However, it is not the case that the Sun’s pull is constant everywhere on the Earth. As you know, the gravitational pull of the Sun drops off as you go farther away from it.
Detailed explanation-3: -Even though the sun is much more massive and therefore has stronger overall gravity than the moon, the moon is closer to the earth so that its gravitational gradient is stronger than that of the sun.
Detailed explanation-4: -However, the sun is 390 times further from the Earth than is the moon. Thus, its tide-generating force is reduced by 3903, or about 59 million times less than the moon. Because of these conditions, the sun’s tide-generating force is about half that of the moon (Thurman, H.V., 1994).