DELHI PUBLIC SCHOOL TAPI

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1 Astronomy Quiz 1.1 Multiple-Choice Questions 1. Among all of the listed planets which one is not a Jovian planet? a. Earth b. Jupiter c. Neptune d. Saturn 2. The day on which the Sun s direct rays cross the celestial equator is called: a. Easter b. The solstice c. The equinox d. The ecliptic 3. Who invented the telescope? a. Hans Lippershey b. Archimedes c. Galileo d. Johannes Kepler 4. What is the visible part of the Sun called? a. Photosphere b. Lithosphere c. Corona d. Stratosphere 5. Approximately how many miles are there in a light year? a. 5.9 Trillion b. 5.9 Billion c. 5.9 Million d. 5,90, Which is the name of a radio source that is very far from Earth? a. Tracer b. Phaser c. Quasar d. Tacer 7. How many constellations are officially recognized? a. 12 b. Over billion c. Over million d What term do astronomers use to describe the two times a year when day and night are of equal length? a. Solstice b. Eclipse c. Equinox d. Blue moon 9. Which planet has the largest moon in the solar system? a. Jupiter b. Earth c. Venus d. Mars 10. What space objects can create craters on the surface of the Earth? a. Asteroids b. Meteors c. Meteorites d. Meteoroids

2 11. What does a light-year measure? a. Amount of light b. Time c. Distance d. Brightness 12. Which of the following best describes a supernova? a. A pair of conjoined stars b. A fast moving meteor c. A bright explosion d. Black hole 13. Who discovered that the planets travel in an ellipse, rather than a circle? a. Johannes Kepler b. Isaac Newton c. Galileo Galilei d. Albert Einstein 14. What is the name of the North Star? a. Vega b. Sirius c. Parallax d. Polaris 15. What is the scientific term behind why the stars twinkle? a. Parallax b. Twinkling c. Albedo d. Scintillation 16. Which of the following planets is NOT considered one of the gas giants? a. Mars b. Jupiter c. Saturn d. Uranus 17. What is at the center of the Milky Way galaxy? a. Black hole b. Sun c. The planet earth d. Mars 18. What are the moons of Uranus named after? a. Roman and Greek Gods b. Character of Shakespeare play c. Discoverer d. Hollywood movie s characters 19. What is the name of the nearest galaxy to Earth? a. Andromeda b. Vega c. Polaris d. MACS0647-JD 20. On what planet will you find the largest volcano in the solar system? a. Earth b. Mars c. Jupiter d. Neptune 21. Which planet has the most moons? a. Earth b. Mercury c. Venus d. Jupiter 22. What are the rings around Saturn mostly made from? a. Methane b. Ice c. Helium d. Silicon

3 23. How often does Halley's Comet come around? a. Every 1 year b. Every decade c. Every 75 years d. Every month 24. What is a nebula? a. Crashed comet b. A burnt out star c. Planet d. a cloud of space-dust 25. Which gas is most predominant in the sun? a. Neon b. Argon c. Helium d. Hydrogen 26. How many planets with rings are there in our solar system? a. Two b. Three c. Four d. Six 27. Approximately, how many moons are there in our solar system? a. 100 b.120 c.140 d Before the first telescope was invented what were ancient astronomers able to learn about planets? a. They could differentiate the planets from stars b. They could see their moons c. They were able to measure their temperature d. They could measure the distance between earth and stars 29. When and which spacecraft did first send back surface images from a planet in our solar system? a. Venera 9, 1975, Venus b. Pioneer 10, 1973, Jupiter c. Mariner 10, 1974, Mercury d. Voyager 2, 1977 Jupiter 30. Which was the first planet to be explored by a space probe? a. Mars b. Earth c. Venus d. Saturn 31. How long did it take for Pioneer 11 to reach Jupiter? a. 600 days b.602 days c. 604 days d.606 days 32. Who is the author of this famous quote: I m sure the universe is full of intelligent life. It s just been too intelligent to come here. a. Stephen Hawking b. Edwin Hubble c. Carl Sagan d. Arthur Clarke 33. Select the two main components of the Milky Way Galaxy from the list: a. Halo b. Bulge c. Disk d. Spiral arms

4 34. The most prominent feature of the Milky Way Galaxy are these long curves of bright stars, star clusters and gas and dust. a. Nuclear bulge b. Globular cluster c. Spiral arms d. Halo 35. Extra mass is found in the Milky Way Galaxy in an area that extends ten times farther than the edge of the visible disk. This region is sometimes called a. a. Dark matter b. Dark energy c. Dark Halo d. Black hole 36. Which gas is responsible for bright colour of Neptune and Uranus? a. Carbon dioxide b. Carbon Monoxide c. Sulphur dioxide d. Methane 37. Uranus and Neptune are approximately the size of Earth. a. 4 times b. 2 times c. Half d. same 38. How many moons currently orbit Neptune? a. 13 b. 60 c. 42 d Theoretical models indicate that Uranus and Neptune have cores similar to Saturn and Jupiter. a. Liquid Iron b. Solid Iron c. Ice d. Rocky 40. Triton is the largest moon found orbiting Neptune. What do scientists believe they found on Triton? a. Extremophiles b. Saltwater oceans c. Water ice d. Intelligent life 41. Check all of the following spacecraft that have gathered information orbiting Uranus and Neptune. a. Voyager 2 b. Cassini c. Hubble d. Chandra 42. Uranus was discovered by a British Astronomer named. a. Herschel b. Sagan c. Lassee d. Hubble 43. How long does it take for Pluto to orbit the sun? a. 248 years b. 365 days c. 248 months d.248 days 44. What does Pluto s atmosphere consist of? a. Methane b. Nitrogen c. Carbon monoxide d. All of them

5 45. Because of Pluto s frictional gravity the ice on the planet can melt and create which is needed to sustain life. a. Air b. Carbon dioxide c. Water d. Carbon monoxide 46. Which motion causes the pattern of day and night on Earth? a. Earth rotates on its axis b. Earth orbits around the sun c. The moon rotates on its axis d. The moon orbits around Earth 47. Why do satellites and spacecraft launched from Earth need to reach a specific speed to escape Earth s surface? a. to overcome Earth s gravitational force b. to protect equipment from radiation c. to break through the sound barrier d. to avoid Earth s magnetic field 48. Which explains the relationship between hours of sunlight and seasons? a. the rotation of Earth on its axis b. the tilt of Earth s axis relative to the sun c. the location of Earth s orbit in the solar system d. the motion of the moon as it travels around Earth 49. What causes the streak of light observed when a meteoroid enters Earth s atmosphere? a. sunlight reflected from the meteoroid surface b. energy released from radioactive materials in the meteoroid c. lightning produced between the meteoroid and the upper atmosphere d. visible light produced from the interaction between the meteoroid and the upper atmosphere

6 50. The diagram shows the position of Earth (E) now. Where will Earth be in six months? a. near position 1 b. near position 2 c. near position 3 d. near position Review Questions: (Give answers in your own words) A. Our Modern Perspective of the Universe Since the Copernican revolution (about 400 years ago), we have discovered that the Universe is immense. For example: 1. How many Earths could you fit in the Sun? 2. How many stars are there in our galaxy, the Milky Way? 3. About how many galaxies can Astronomers see? B. A Sense of Scale 1. From the Powers of 10 video, about how many powers of 10 would we have to zoom out from this classroom to see: The Solar System? The nearest star(s) next to ours? The Milky Way Galaxy? 2. How old is the Universe thought to be? 3. How old is our Solar System thought to be?

7 C. Sense of Time 1. If we were to compress time since the Big Bang into one year, and make the time of the Big Bang January 1, on what date (and hour if appropriate) did: The Earth form? All human prehistory begin and last through? D. Units and Conversions 1. Show how you would convert 2.34 km to cm 2. Show how you would convert 2.34 cm to km 1.3. Answer in one word. 1. Is the planet Neptune bigger than Earth? Yes 2. What is the name of Saturn s largest moon? Titan 3. Olympus Mons is a large volcanic mountain on which planet? Mars 4. What is the hottest planet in our solar system? Venus 5. Ganymede is a moon of which planet? Jupiter 6. What is the name of the first satellite sent into space? Sputnik 7. What planet is famous for the beautiful rings that surround it? Saturn 8. As an objects mass increases its gravitational force. Increases 9. is the flash of light that we see in the night sky when a small chunk of interplanetary debris burns up as it passes through our atmosphere. Meteor 10. The larger chunks of rock that comes from belt between Mars and Jupiter is known as. Asteroid 11. A small chunk of interplanetary debris that enters earth s atmosphere which vaporize before reaching surface of the earth is known as. Meteoroids. 12. An asteroid like objects covered with ice, methane, ammonia and other compounds that develop a fuzzy, cloud-like shell called a coma and sometimes a visible tail whenever they orbit close to the sun is known as. Comet 13. Which among the following is brightest star? Sirius

8 14. The Magellanic Clouds are visible from. Southern hemisphere 15. Aurorae are produced by the collision of charged particles from Earth s magnetosphere which arise due to. Solar winds. 16.What is approximate diameter of Milky Way? light years approx. 17. Which planet is known as the Earth s Twin? Venus 18. The size of the earth was first measured by. Eratosthenes 19. The nuclear fuel in the Sun is. Hydrogen 20. Which planet is called Evening star? Venus 21. The outermost layer of the sin is known as. Corona 22. On which of the following planets of the solar system does the sun rise in the west and set in the east? Venus 23. What do you call molten rock before it has erupted? Magma 24. 'Cascade', 'horsetail', 'plunge' and 'tiered' are types of what? Waterfalls 25. The mass of the earth is made up mostly of which two elements? Iron (32%) and oxygen (30%) 26. What is the coldest place in the universe? The boomerang Nebula 27.What percent of the universe is dark matter? (Plus or minus 2%.) 27% 28. What is the most common type of star found in the Milky Way? Red dwarf stars 29. What is the largest type of star in the universe? Red supergiant stars 30. What is the longest continuous time a human has spent in space? (Plus or minus 20 days.) 437 days ***********************************************

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