1°) What is approximately the distance between Earth and Sun ?
149 000 000 km. Ok = 1,5%
2°) What is approximately the distance between Earth and Moon ?
384 000 km. Ok = 7,5%
3°) How old are approximately Sun and the solar system ?5 000 000 000 years. Ok = 9%
4°) Give the names of the 8 planets of the solar system (from the
closest to Sun to the farthest) : Mercury, Venus, Earth,
Mars, Jupiter, Saturn, Uranus, Neptune.
Excellent = 6% ; Ok = 18%
5°) What is the difference between a star and a planet ? A star
produces the light it emits. A planet only reflects the light it
receives. Ok = 7,5%
6°) Give the names of 3 stars : Sun, Polaris, Sirius, Vega, Capella,
Rigel, Betelgeuse, Antares, Spica, Aldebaran, Regulus...
3 stars = 22,5% ; 2 stars = 10,5% ; 1 star = 24%
7°) Which stars are the warmest ?
Blue stars. Ok = 13,5%
8°) Ok = 1,5%
9°) What is a light-year ? This is the distance covered by the light
in one year (» 9 600 000 000 000 km). Ok = 7,5%
10°) Ok = 3%
11°) What is a galaxy ? This is a gathering of billions of stars :
they start their life in diffuse nebulae inside the galaxy.
Ok = 18%
12°) What is the Milky Way ? This is what we see from our galaxy.
Ok = 13,5%
13°) What is a diffuse nebula ? This is a sort of huge cloud, made of
dust, gas and plasma, where stars begin their life. Ok = 9%
14°) What is a globular cluster ? This is a gathering of generally old
stars, around the halo of the Galaxy. Ok = 4,5%
15°) What is a constellation ? This is an area of the celestial sphere.
Ok = 6%
16°) Give the name of 3 constellations : The Great Bear (Ursa
Major) , the Little Bear (Ursa Minor) , Cassiopeia, ...
3 names = 9% ; 2 names = 19,5% ; 1 name = 12%
17°) What is the ecliptic ? This is the path of the Earth around the
Sun. This is also the apparent path of the Sun in the sky
throughout the year. Ok = 0 !
18°) What is the zenith ? This is the point situated over our head.
Ok = 6%
19°) Ok = 3%
20°) What is the north celestial pole ? This is the point of the
celestial sphere which is at the zenith when we are at the
north geographical pole. Ok = 1,5%
21°) Who was Phaëton in the Greek mythology ? He was the son of
Helios, the sun god. Ok = 9%
22°) Who was Mercury in the Roman mythology ? He was god of
traders and travellers. He was also the messenger of Jupiter.
Ok = 3%
23°) Give the name of an ancient Greek astronomer and write what he
did for astronomy.
Eratosthenes (284-192 BC) estimated Earth circumference.
Aristarchus (310-230 BC) formulated a heliocentric ypothesis.
Hipparchus (»170-»120 BC) compiled a stars catalogue
Ptolemy (»100-»170 AD) described the geocentric theory
Only 1 answer !
24°) What Polish 16th century astronomer said that Earth turns around
the Sun ? Nicolas Copernic (1473- 1543). Ok = 0 !
25°) What Italian astronomer looked at Jupiter with a refracting
telescope in 1610 ? Galileo Galilei (1564-1642). Ok = 0 !
26°) What English 17th & 18th centuries astronomer stated universal
gravitation law ? Isaac Newton (1642-1727). Ok = 0 !
27°) Indicate a contribution of Albert Einstein (1879-1955) to
astronomy. The general theory of relativity; Ok = 3%
28°) Who was the first man who walked on the Moon ? When did he?
Neil Armstrong (July 21st 1969)
Ok = 52,5% !!! but only 9% with the date.
Other answers : Lance Armstrong, Louis Armstrong &
Tintin...
into orbit around the Earth ? Edwin Hubble (1889-1953). Ok = 0 !
30°) What French writer wrote « De la Terre à la Lune » [« From
Earth to Moon »] ? Jules Verne (1828-1905). Ok = 24%
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