UNIVERSE
SATELLITESICY BODIES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The sun’s gravity doesn’t affect water.
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The moon is much closer than the sun.
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Although the moon is smaller than the sun, it has more mass.
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The earth blocks the sun’s gravitational pull.
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Detailed explanation-1: -Based on its mass, the sun’s gravitational attraction to the Earth is more than 177 times greater than that of the moon to the Earth. If tidal forces were based solely on comparative masses, the sun should have a tide-generating force that is 27 million times greater than that of the moon.
Detailed explanation-2: -Ocean tides are influenced more by the moon than by the sun because although our sun has greater mass and therefore greater gravity, gravity is also affected by distance, so the moon has a stronger gravitational pull on the ocean than the sun does because the moon is much closer to Earth.
Detailed explanation-3: -The sun is 400 times bigger than the Moon and the gravitational pull exerted by it on the Earth should be much more than that of the Moon. However the Moon is far more closer to the Earth than the Sun. Due to this, the Moon’s pull is experienced much more than that of the Sun.
Detailed explanation-4: -Tides and the Moon This is because the Earth’s gravity is pulling you back down. The Moon has gravity of its own, which pulls the oceans (and us) towards it. The Moon’s gravitational pull on us is much weaker than Earth’s, so we don’t really notice it, but we can see the Moon’s effect on the liquid water of the oceans.