Satellites and moons
1 mark · EasyHow long does it take the Moon to orbit the Earth once? Give your answer in days.
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About 27 days
Also accept: 27 days; just over 27 days
Common mistakes: 30 days; 365 days
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Marking points
B1 · 1 mark · States about 27 days (accept slight variation, e.g. 27–28 days).
Worked solution
It takes just over 27 days for the Moon to complete one orbit of the Earth.