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The Solar System
The Solar System
Evaluate and improve your knowledge of the solar system
by Daniel Pascariu
Last modified:
taken 150 times
1.  How many planets are in our Solar System ?
6
8
10
2.  How many dwarf planets are in our Solar System ?
4
6
8
3.  In order of their distances from the Sun, the planets of the Solar System are:
Mercury, Venus, Mars, Earth, Jupiter, Saturn, Uranus, Neptune
Venus, Mercury, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
4.  In order of their distances from the Sun, the dwarf planets of the Solar System are:
Ceres, Pluto, Makemake, Eris
Ceres, Makemake, Eris, Pluto
Makemake, Eris, Pluto, Ceres
5.  The principal component of the Solar System is the Sun which contains ______ percent of the system's mass.
99.86
82.34
65.67
6.  The asteroid belt contains tens of thousands, possibly millions, of objects over one kilometre in diameter and occupies the orbit between:
Earth and Mars
Mars and Jupiter
Jupiter and Saturn
7.  When is the Solar System believed to have formed ?
1.5 billion years ago
4.6 billion years ago
10 billion years ago
8.  When will the Sun die ?
in about one billion years
in about three billion years
in about five billion years
9.  Astronomers usually measure distances within the Solar System in astronomical units (AU). One AU is approximately the average distance between the Earth and the Sun, which is:
1,495,980 km or 929,560 mi
14,959,800 km or 9,295,600 mi
149,598,000 km or 92,956,000 mi
10.  What is the average distance between Pluto and the Sun ?
12 AU
25 AU
38 AU
11.  Comets are small Solar System bodies, usually only a few kilometres across, composed largely of volatile ices. What is the explanation of the tail of the comets ?
The tail of the comet is made of carbon dioxide.
When a comet enters the inner Solar System, its proximity to the Sun causes its icy surface to sublimate and ionise, creating a long tail of gas and dust.
This phenomenon is still a mystery for the modern science.
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Quiz Reference:
More info about the Solar System on Wikipedia