SCIENCE
PHYSICAL SCIENCES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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You will sometimes see that the craters of the moon are bigger than usual.
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The moon will become crescent.
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You will always see the same side of the moon from Earth.
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NONE OF THE GIVEN CHOICES
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Detailed explanation-1: -We always see the same side of the moon from the Earth because of tidal locking. Tidal locking is the name given to a situation when an object’s orbital period matches its rotational period. This results in the same face of the moon always facing the Earth.
Detailed explanation-2: -This interaction does two things: it creates friction that slows Earth’s own rotation, and creates forces that change the Moon’s orbital speed, causing it to fall farther away into space.
Detailed explanation-3: -The Moon orbits Earth once every 27.3 days and spins on its axis once every 27.3 days. This means that although the Moon is rotating, it always keeps one face toward us. Known as “synchronous rotation, ” this is why we only ever see the Moon’s nearside from Earth.
Detailed explanation-4: -All twenty known moons in the Solar System that are large enough to be round are tidally locked with their primaries, because they orbit very closely and tidal force increases rapidly (as a cubic function) with decreasing distance.
Detailed explanation-5: -"The moon keeps the same face pointing towards the Earth because its rate of spin is tidally locked so that it is synchronized with its rate of revolution (the time needed to complete one orbit). In other words, the moon rotates exactly once every time it circles the Earth.