You only have 60 seconds to answer each question You are allowed to discuss amongst yourselves as team members Calculators may be used if needed No internet is to be used therefore the use of cellphones is also prohibited ID: 1046366
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1. AstroQuiz 2019ROUND 3
2. RULESYou only have 60 seconds to answer each question.You are allowed to discuss amongst yourselves as team membersCalculators may be used if needed.No internet is to be used, therefore the use of cellphones is also prohibited.The judge’s decision is final.
3. QUESTION 1Which of the following is false about Proxima Centauri, the 2nd closest star to Earth?It is a red dwarf and discovered in 1915It is 4,2 light years away from EarthIt is a red dwarf and discovered in 1815It is part of the three star Alpha Centauri system
4. QUESTION 2One can jump much higher on Earth than on the Moon. TrueFalse
5. QUESTION 3The reason why one can jump much higher on the Moon than on Earth is because _____ on the Moon. there is no atmosphere.the magnetic field is weaker.there is no water.gravity is weaker.
6. QUESTION 4During which Moon phase can we experience a total solar eclipse?Full MoonNew MoonFirst QuarterLast Quarter
7. QUESTION 5Why do stars twinkle? Because they get smaller and biggerBecause of turbulence in our atmosphereBecause they fuse different amounts of hydrogenBecause their magnetic field varies in strength
8. QUESTION 6Why has the Universe cooled down to about 3 degrees above absolute zero? There were more stars earlier onThere were fewer stars earlier onIt has become biggerIt is due to climate change
9. QUESTION 7Which pair of planets below, represent the smallest planets within their own groups?Mercury & SaturnJupiter & EarthNeptune & MercuryMercury & Uranus
10. QUESTION 8At what speed does Earth go around the Sun?9,8 km/s11,2 km/s29,8 km/s23,9 km/s
11. QUESTION 9Big stars live longer, because they have more hydrogen to fuse than small ones. True False
12. QUESTION 10A starburst galaxy is …a galaxy with stars continually bursting.a galaxy that produces bursts of intense light in a regular way.a galaxy with very high star birth rate.None of the above
13. QUESTION 11One of the definitions of a Blue Moon is that it is a second full moon in a month. When in 2015 did we have a blue moon?May June July August
14. QUESTION 12Why does a star at the end of its life collapse? Its electrons generate a massive pressureThere is no heat pressure any moreThe magnetic field has become strongerThe electric field has weakened
15. QUESTION 13Constellations are …A. clusters of stars very near each other in space.B. groupings of planets in the sky.C. patterns of stars in the sky.D. close associations of stars and visible planets.
16. QUESTION 14All the stars in a constellation are about the same distance from Earth. True False
17. QUESTION 15How many days are there between the waxing quarter and waning quarter Moon? 29301431
18. QUESTION 16Which celestial body has been selected for possible exploration as it has features that resemble that of the Earth?NeptunePlutoMarsUranus
19. QUESTION 17Light travels at a speed of …300 000 m/s30 000 km/s300 000 000 m/s30 000 m/s
20. QUESTION 18What is the most abundant gas found in Venus' atmosphere? NitrogenHydrogenOxygenCarbon Dioxide
21. QUESTION 19The most abundant gas found in Earth’s atmosphere is …Carbon DioxideNitrogenHydrogenOxygen
22. QUESTION 20Which of the following is a gas planet and has at least 27 moons?VenusMercuryNeptuneUranus
23. QUESTION 21Which of the following is an inner planet and is usually referred to as morning or evening star? MercuryNeptuneVenusUranus
24. QUESTION 22The largest optical telescope in Southern Africa is the …Hubble Space Telescope Innes Telescope South African Large Telescope High Energy Stereoscopic System
25. QUESTION 23What is the name of the South African Square Kilometre Array forerunner? PathfinderExplorerMeerKATSquare Kilometre Array
26. QUESTION 24Why do we not have lunar or solar eclipses every month? It is because …we cannot see the Moon everyday of the month.the Earth's orbit around the Sun is not in the same plane as the Moon's orbit around the Earth.of the speed at which the Moon is orbiting the Earth.of the speed at which the Earth is orbiting the Moon.
27. QUESTION 25The second nearest star to us after the Sun is Proxima Centauri. What is the third nearest star to us? Barnard’s StarSiriusAntaresAlpha Centauri
28. QUESTION 26Of the five officially recognised dwarf planets in our solar system, Pluto is the largest, followed by …Eris, Haumea, Makemake, CeresEris, Haumea, Makemake, CeresEris, Ceres, Makemake, HaumeaEris, Makemake, Haumea, Ceres
29. QUESTION 27During a total solar eclipse the Moon’s shadow causes a narrow path of total darkness across the Earth. What is this path of total shadow called? PenumbraCoronaUmbraLuna
30. QUESTION 28Proxima Centauri is approximately 4,22 light years away from the Earth. How far is it in km given that 1 light year = 9,46 x 1012 km?2,241 x 101322,41 x 10123,992 x 101339,92 x 1012
31. QUESTION 29Whilst on Earth the Sun rises in the east and sets in the west, on Venus …we will never know from where the Sun sets and rises because of the planet’s thick atmosphere.the Sun also rises in the east and sets in the west.there is no sunrise or sunset because Venus does not rotate around its axis.the Sun rises in the west and sets in the east.
32. QUESTION 30A solar eclipse occurs during the night whilst a lunar eclipse occurs only during the day.TrueFalse
33. THANK YOU FOR PARTICIPATINGGOOD LUCK TO ALL!