Everyday Science
NULL
Medium
Question
On the Moon, escape velocity is __________?
A
Less than on Earth due to its lower mass and smaller radius
✓ Official correct answer
B
More than on Earth due to its smaller radius
C
The same as on Earth because escape velocity is a constant
D
Dependent on the time of day
Community credibility
Registered members can vote for the answer they believe is correct today and explain why. If the facts change after an election or news event, suggest a new option so others can vote it up.
A
Less than on Earth due to its lower mass and smaller radius
No member explanations yet for this option.
B
More than on Earth due to its smaller radius
No member explanations yet for this option.
C
The same as on Earth because escape velocity is a constant
No member explanations yet for this option.
D
Dependent on the time of day
No member explanations yet for this option.
Explanation
Lunar escape speed is less than Earth's because of lower mass (and size).
Hence the keyed answer is Less than on Earth due to its lower mass and smaller radius.
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