What is true of the Moon's orbital and rotational periods?Group of answer choicesThe rotational period varies with the Moon's phase.They are equal.The orbital period is greatest at full moon.The orbital period is longer.The rotational period is longer.
Question
What is true of the Moon's orbital and rotational periods?Group of answer choicesThe rotational period varies with the Moon's phase.They are equal.The orbital period is greatest at full moon.The orbital period is longer.The rotational period is longer.
Solution
The correct answer is: They are equal.
This is because the Moon is tidally locked with the Earth, meaning its rotational period (the time it takes to complete one rotation on its axis) is the same as its orbital period (the time it takes to orbit the Earth once). This is why we always see the same side of the Moon from Earth.
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