The Moon takes just as long to rotate around its own axis as it does to revolve around the planet (Earth). How many other moons in the Solar System share this feature?

none
one
three
most of them
If the ro­ta­tion­al fre­quen­cy of satel­lite is larger than orbital fre­quen­cy, a small torque coun­ter­act­ing the rotation arises, even­tu­al­ly locking the fre­quen­cies in a tidal lock. Pluto and Charon are the extreme example, being locked to each other.

Answers distribution

none
one
three
most of them
answers
flagFinland
2%
0%
5%
91%
34
flagthe United Arab Emirates
7%
7%
0%
82%
40
flagSwitzerland
19%
3%
15%
61%
26
flagItaly
27%
4%
6%
60%
43
flagthe Netherlands
19%
17%
4%
58%
67
flagSweden
11%
25%
11%
51%
27
flagCanada
27%
11%
8%
50%
36
flagPakistan
26%
17%
8%
47%
23
flagGermany
27%
11%
11%
46%
205
flagNorway
24%
27%
3%
45%
33
flagPoland
31%
14%
9%
44%
15214
flagthe United Kingdom
33%
13%
8%
44%
445
flagIndia
32%
13%
8%
44%
250
flagFrance
17%
26%
11%
44%
34
flagthe United States
33%
12%
11%
42%
448
flagUkraine
33%
20%
16%
30%
30
flagRepublic of Ireland
45%
18%
9%
27%
33
flagUnknown
46%
17%
11%
25%
979
flagAustralia
40%
22%
11%
25%
27
flagthe Philippines
36%
27%
13%
19%
36

Gender

men41%
women46%
none
37%
27%
one
13%
16%
three
8%
8%
most of them
41%
46%

Details

Author: globalquiz.org
Illustration: Steve Jurvetson
tools
Should this question be improved? Improve it.
Globalquiz questions are translated by users for other users. Translate this question.