WELCOME to the SAASTA AstroQuiz 2018 ROUND 4

1. WELCOME to the SAASTA AstroQuiz2018 ROUND 4

2. QUESTION 1 Which first demonstrator telescope did South Africa build to help with the developments of Square Kilometre Array? • Kat-7 • MeerKat • eXperimental Development Model • SumbandilaSat

3. QUESTION 2 What is the diameter of each telescope in the Karoo Array Telescope? • 24 metres • 12 metres • 7 metres • 15 metres

4. QUESTION 3 In which province of South Africa can we find the KAT 7? • Northern Cape • Eastern Cape • Gauteng • Free State

5. QUESTION 4 Which of the following is not correct about the Southern African Large Telescope (SALT)? • Comprises of 91 mirrors • Each mirror is 1,2 metres in diameter • Mirrors are hexagonal in shape • It is located in the Western Cape

6. QUESTION 5 Approximately how far do the rings of Saturn spread/span? • 280 000 m • 380 000 km • 282 000 km • 190 000 m

7. QUESTION 6 Which of the following statements is incorrect about the Kuiper belt? • It is found between Mars & Jupiter • It is found beyond Neptune • It is where most dwarf planets are found • It surrounds our star, the Sun

8. QUESTION 7 What keep planets in orbit around the Sun and moons in orbit around planets? • Only gravitation forces • Only the orbiting speeds • Gravitation and orbiting speeds • Only the Sun’s attraction

9. QUESTION 8 The Milky Way Galaxy is best observed from the Southern than Northern hemisphere. • True • False

10. QUESTION 9 The core of the Square Kilometer Array will be situated in the Karoo in the North West province. • True • False

11. QUESTION 10 Radio Astronomy in Southern Africa started in 1961 with the construction of a facility now known as Hartebeesthoek Radio Astronomy Observatory. • True • False

12. QUESTION 11 How many terrestrial planets have natural satellites? A. Five B. One C. Four D. Two

13. QUESTION 12 Which of the following terrestrial planets have moons around them? • Earth & Mercury • Mercury & Venus • Saturn & Jupiter • Earth & Mars

14. QUESTION 13 When the Earth is furthest from the sun, what season is it in the Northern hemisphere? • Summer • Winter • Autumn • Spring

15. QUESTION 14 On which day of the year does the summer solstice occur? • June 21 • Dec 21 • June 1 • Dec 01

16. QUESTION 15 During an equinox, neither the Southern nor Northern pole is tilted towards the Sun. • True • False

17. QUESTION 16 If the Earth has a radius of 6378 kilometres, what will its circumference (c) be in kilometres? NB: C = 2 π r , π = 3.14 • 40053,84 • 4,0053 x 105 • 4,0053 x 106 • 40,0053 x 107

18. QUESTION 17 The diameter of the Earth is 12 756 km. If a soccer field is 100 m long, how many soccer fields will fit in the Earth’s diameter? • 127,560 • 12,75600 • 12756000 • 12756

19. QUESTION 18 Which of the following is incorrect about terrestrial planets? • They are found beyond the asteroid belt • They have closely spaced orbits compared to Jovian planets • They are made of mostly rock and metals • They have higher masses compared to Jovian planets

20. QUESTION 19 It takes the Earth approximately one year to orbit the Sun. If Lerato is 12 years old, what does this mean in terms of Earth’s revolution? • Lerato has orbited the Sun 12 times • Since Lerato was born, the Sun shone on her 12 times • It took Lerato 12 times to orbit the Earth • The Earth rotated on its axis 12 times with Lerato

21. QUESTION 20 Which of the following is incorrect about a Lunar eclipse? • It occurs during Full Moon • The Earth is between the Sun and the Moon • The shadow of the Moon falls on the Earth appearing to block out the Sun • The Moon appears dull

22. QUESTION 21 Looking into our night sky at the stars outside our Solar System, we are always looking at the past. This is due to __ • Stars being too bright, colourful and dangerous • The Earth being smaller than all stars • Star distances and speed of light • Stars being stationery whilst Earth travels faster

23. QUESTION 22 At what phase of the Moon will lunar eclipse occur? • New Moon • Full Moon • First Quarter • Third Quarter

24. QUESTION 23 The Innes telescope at the SAASTA Johannesburg Observatory is a refractor telescope. This means that ___ • The telescope uses a glass lens as the objective • The telescope uses mirrors as the objective • The weight of the telescope is 26.5 kg • The telescope can see as far as distance of 26.5km

25. QUESTION 24 The Innes telescope at the SAASTA Johannesburg Observatory is a 26.5 inch telescope. The “26.5 inch” means that ___ • The diameter of the telescope’s lens is 26,5 inches • The telescope’s height is 26,5 inch • The weight of the telescope is 26.5 inches • 4. The telescope can see as far as distance of 26.5km

26. QUESTION 25 Why is the SKA called “Square Kilometre Array”? It is because________ • The size of all the telescopes together will add up to one square kilometre • The total surface area of all the antennas will add up to one square kilometre • The telescopes will be put on a one square kilometre bedrock • One telescope is one square kilometre in size

27. QUESTION 26 South Africa's MeerKAT telescope is an SKA precursor or 'pathfinder' telescope. How many dish-shaped antennas will it consist of? • 64 • 74 • 46 • 47

28. QUESTION 27 What is the name of the set of telescopes built as an engineering prototype for the MeerKAT? • KAT-7 • ASKAP • SALT • MeerKat-7

29. QUESTION 28 What is the name of the largest optical telescope found in the Southern Hemisphere? • SKA • SALT • KAT-7 • MeerKAT

30. QUESTION 29 • The brightest star in the sky, Sirius, is _____ • closest to the Earth • whiter and hotter than the Sun • blue and hot • discovered by Robert Innes in 1915

31. QUESTION 30 On Friday, 15 September 2017, one spacecraft crashed into a certain planet. Mention the name of the spacecraft and the planet it crashed into. • Soyuz; Earth • Opportunity; Mars • Cassini; Saturn • Voyager 1; Mars

32. THANK YOU

33. TIE BREAKERS

34. QUESTION 1 A building containing one or more telescopes is referred to as ______ • An Observatory • An Astrobuilding • An Observation House • A Star Deck

35. QUESTION 2 What colour is a star when it is cool? • Blue • Yellow • Green • Orange

36. QUESTION 3 Which of the following statements about Mars is true? • It is believed that liquid water once formed rivers and ocean on the surface of Mars millions of years ago. • Ice water has been found on Mars surface • It is the only planet except Earth to be visited by humans • Aand B above

37. QUESTION 4 Which of the following is true? • Mercury is hotter than Venus because it is nearest to the Sun • Venus is hotter than Mercury because of the greenhouse effect • Jupiter is hotter than Mercury because it is the largest planet in the solar system • None of the above

38. QUESTION 5 Choose the true statements about Ceres. It is______ • in the Kuiper Belt. • a dwarf planet. • in the asteroid belt. • the largest comet. The statements that are true, are ______ A. i& ii B. ii & iii C. i& iii D. i& iv

39. QUESTION 6 Which of the following is not true? • All planets revolve around the Sun in the same direction • The tilt of the rotation axis of Uranus is unlike any other planet in the solar system • Except Mars, all planets revolve around the Sun in the same direction • A and B above

40. QUESTION 7 In which South African province do we find the Tswaingcrater? • Eastern Cape • Free State • North West • Limpopo

41. QUESTION 8 Morokweng, Vredefort, Tswaingand _______ are the impact craters in South Africa. • SAAO • Kalkkop • SALT • Crater

42. QUESTION 9 The largest verified and the second oldest crater is: • Vredefort • Tswaing • Kalkkop • Morokweng

43. QUESTION 10 What element is abundantly found in the core of planet Earth? • Oxygen • Iron • Nitrogen • Gold

44. THANK YOU FOR PARTICIPATING, SEE YOU AT THE NATIONAL FINALS!!