Multiple choice general knowledge

Only one side of the moon is ever seen from the earth because ?

  1. the moon is at perigee

  2. the moon does not, rotate

  3. only one side reflects light

  4. the periods of rotation and revolution of the moon are equal
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The Moon is tidally locked to Earth, meaning its rotation period exactly matches its orbital period (about 27.3 days). This synchronization causes the same side to always face Earth. If the Moon didn't rotate or if only one side reflected light, we wouldn't consistently see only one face.

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