Universe MCQs
- The Sun is the controlling body of Earth’s solar system.
- Sodium was the first metal identified in the Sun
- Hydrogen accounts for 71% of the Sun’s mass, helium 26.5 percent and all the other known elements. 2.5%.
- The Sun’s core lies a giant nuclear furnace which converts hydrogen to helium at a rate of 600 million tonnes per second.
- The diameter of the whole solar system is about 1170 crore kilometers.
- The Sun is made up of extremely hot gases. Its glowing surface is called the photo sphere
- The visible white light of the Sun is made up of 7 colours
- Like other stars, the Sun is composed mainly of hydrogen.
- The Moon is the one and only one satellite of the Earth. It is a natural satellite and is nearest neighbour in space.
- The Moon revolves around the earth while rotating on its own axis. Only 59% of its surface is directly visible from the earth.
- The moon is about 1/4 the size of its mother planet, the earth. It takes 1.3 seconds for Moonlight to reach the earth.
- The sunlight takes about 8 minutes and 16.6 seconds to reach the earth.
- The Moon is the first member of our solar system to have been visited by man.
- The earth rotates around its axis. This axis is an imaginary line passing through the centre of the earth.
- The earth completes one rotation in 24 hours (23 hrs 56 min. 4.09 secs). The earth rotates from west to east.
- The Science which deals with the nature and motion of celestial bodies is called Astronomy.
- Galaxies are dotted like islands throughout the universe. A galaxy is a huge concentration of stars which are held together by the force of the gravity. They are so big that sometimes they are called Island Galaxies.
- Milky Way is our Home galaxy in one of a cluster of 25 galaxies called local group.
- Cosmology is a branch of astronomy that deals with the origin and evolution of the universe.
- In the universe, some matter appears small but emit more energy than the other stars of the milky way. Such stars are called “Quasars.”
- When the hydrogen of a star is depleted, its outer regions swell and redden. This stage of a star is called a “Red Giant”. The sun will turn into a Red Giant in 5 billion Years.
- Black hole stage of the star occurs when the ancient star collapses. Gravity becomes so intense in the hole that nothing escapes even light. This Dark object is thus called a “Black hole”.
- An Earthquake is a vibration or oscillation of the surface of the earth caused by a transient disturbance of the elastic or gravitational equilibrium of the rocks at or beneath the surface.
- Asteroids are a series of very small planets or fragments of planets lying between the orbits of Mars and Jupiter. Ceres (length 1000 km.) is the largest asteroid. Asteroids are also called planetoids.
- It was believed that comets were formed from the remaining material that was left during the formation of the outer planets. A comet consists of three parts i.e. centre, coma and tail.
- The Meteors are probably the remains of comets which are scattered in the interplanetary space of the solar system. On contact with earth’s atmosphere they burn due to friction. Those which completely burn out into ash are called Meteors or shooting star.
- Equinox is the dates when the nights and days are equal. During these days the Sun shines directly over the equator. March 21 is called Unreal equinox and September 23 is called autumnal equinox.
- The moon is said to be in eclipse when the earth comes between the moon and the sun, this is called Lunar Eclipse. Lunar eclipse occurs only on a pull, moon day.
- The sun is said to be in eclipse when the moon comes between the sun and the earth. This is called solar eclipse. A solar eclipse occurs on a new moon day, when the moon is in line with the sun.
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Solved Universe MCQs
1. Who discovered the Solar System?
(a) Kepler (b) Galileo
(c) Copernicus (d) Eratosthenes
2. Which planet is known as the “Morning Star”?
(a) Saturn (b) Venus
(c) Jupiter (d) Mercury
3. The scientists have found some proofs of presence of water on which of the following planets?
(a) Jupiter (b) Venus
(c) Mars (d) Mercury
4. Mercury is
(a) The smallest planet
(b) The fastest planet
(c) The planet nearest to Sun
(d) All of these
5. Which of the following planets has the smallest diameter?
(a) Mercury (b) Mars
(c) Pluto (d) Venus
6. Which is the brightest star in the night sky?
(a) Altair (b) Denim
(c) Sirius (d) Sun
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7. Which is the natural satellite of the Earth?
(a) Mars (b) Moon
(c) Venus (d) Neptune
8. Bodies which usually fall from the sky on the Earth are called
(a) Comets (b) Meteors
(c) Rock (d) None of these
9. Solar eclipse occurs when
(a) Earth comes between sun and moon
(b) Moon is at right angle to the earth
(c) Moon comes between sun and earth
(d) Sun comes between moon and earth
10. Lunar eclipse is caused when the
(a) moon comes between the sun and the earth
(b) earth comes between the sun and the moon
(c) sun comes between the earth and the moon
(d) None of these
11. The rising of the evening star indicates the
(a) South Pole (b) North Pole
(c) East (d) West
12. Which is the hottest planet in our solar system?
(a) Venus (b) Neptune
(c) Mars (d) Jupiter
13. Which of the following planets is dropped from the list of planets in 2006?
(a) Neptune (b) Pluto
(c) Jupiter (d) Earth
14. Lunar eclipse occurs only on a
(a) first quarter day (b) full moon day
(c) new moon day (d)last quarter day
15. Which planet takes the largest time to go once around the Sun?
(a) Uranus (b) Jupiter
(c) Neptune (d) Pluto
16. Who was the first woman to travel into space?
(a) Sally Ride
(b) Valentina Tereshkova
(c) Svetlana Savitskaya
(d) Eileen Collins | Universe MCQs
17. Who was the first Tourist in space?
(a) Dirk Fremont
(b) Dennis Tito (Brazil)
(c) Rakesh Sharma
(d) Toyohiro Akiyama
18. There is a well developed system of rings around it. This statement is about
(a) Venus (b) Saturn
(c) Mars (d) Uranus
19. Which planet is known as the “Evening Star”?
(a) Saturn (b) Venus
(c) Jupiter (d) Mercury
20. How many days does the moon take to return to the same position among the constellations?
(a) 28 days (b) 29 days
(c) 26 days (d) 30 days
21. How many layers are present in the atmosphere of the sun?
(a) 1 (b) 2
(c) 3 (d) 4
22. Which is the brightest planet in the Solar System?
(a) Jupiter (b) Mercury
(c) Uranus (d) Venus
23. Which one of the following planets has the maximum number of satellites?
(a) Jupiter (b) Uranus
(c) Saturn (d) Venus
24. Name two planets lying between the sun and the earth.
(a) Mercury and Mars
(b) Venus and Mars
(c) Mercury and Venus
(d) Jupiter and Saturn | Universe MCQs
25. The first ever artificial satellite was launched by
(a) Russia (b) France
(c) Japan (d) America
26. The visible part of the sun is called
(a) Ionosphere (b) Hydrosphere
(c) Photosphere (d) Troposphere
27. Name the first astronaut to set foot on moon
(a) Edmund Halley
(b) Neil Armstrong
(c) Alen Shephered (d) Yuri Gagarin
28. NASA is a space agency of
(a) USA (b) UK
(c) China (d) Russia
29. Russia launched its space station into space in 1986, which was
(a) Sputnik (b) Rahber
(c) Mir (d) Skylab – II
30. Sun rises in the east and sets in the west due to the:
(a) Shape of the Earth
(b) Rotation of the Earth around the Sun
(c) Rotation of the Earth on its axis
(d) Movement of the Sun
31. How many planets are present in our galaxy?
(a) 9 (b) 8
(c) 10 (d) 11 | Universe MCQs
32. The planet which revolves very slowly around the sun is
(a) Neptune (b) Jupiter
(c) Mars (d) None of these
33. Which planet is known as “Earth’s near twin planet”?
(a) Mercury (b) Mars
(c) Venus (d) Neptune
34. Hubble is a (launched in 1990)
(a) Rocket name (b) Space station
(c) Space telescope
(d) Microscope
35. Which is the US space shuttle?
(a) Colombia (b) Discovery
(c) Apollo – II (d) Both a & b
36. Who was the first person in space?
(a) Marc Garneau (b) Yang Liwei
(c) Yuri Gagarin (d) None
37. Who was the first Saudi (first Muslim also) in space?
(a) Rai Shaher Yar
(b) Sheikh Muszaphar Shukor
(c) Muhammad Faris
(d) Sultan Salman Al Saud | Universe MCQs
38. The first ever artificial satellite was launched by
(a) Russia (b) France
(c) Japan (d) America
39. When did the space age begin with the launch of the Russian Sputnik?
(a) October 4, 1950
(b) October 2, 1952
(c) September 4, 1954
(d) October 4, 1957
40. Name the first animal to be sent in space:
(a) Laika (b) Laitka
(c) Dolly (d) Panda
41. Name the first artificial satellite:
(a) Sputnik I, of the former Soviet Union
(b) Suez I, of the former Soviet Union
(c) Apollo I, of the USA
(d) Skylab, of the USA
42. Which planet contains largest quantity of carbon dioxide with 95%?
(a) Earth (b) Jupiter
(c) Venus (d) Mercury
43. How many Satellites (Moons) of Saturn Planet?
(a) 27 (b) 36
(c) 47 (d) 56 | Universe MCQs
44. The comet, named after Edmund Halley, reappears after a time of every
(a) 36 years (b) 76 years
(c) 55 years (d) 56 years
45. The group of small pieces of rock revolving round the sun between the orbits of Mars and Jupiter are called
(a) Meteors (b) Comets
(c) Meteorites (d) Asteroids
46. ‘Blue dwarfs’ refer to
(a) Caucasians (b) Young stars
(c) Old stars (d) None of these
47. What are ‘Red giants’?
(a) Caucasians (b) Old stars
(c) Young stars (d) None of these
48. Which of the following US space shuttles?
(a) Opportunity (b) Colombia
(c) Challenger (d) All these
49. The heaviest mass revolving round the Sun is
(a) Moon (b) Jupiter
(c) Neptune (d) Pluto
50. The planet which has longest day is
(a) Mercury (b) Venus
(c) Earth (d) Pluto | Universe MCQs
51. What is the rank of the earth in the solar system in terms of size?
(a) Third (b) Fourth
(c) Fifth (d) Sixth
52. The earth revolves around the sun at a speed of
(a) 18.5 km/sec (b) 26.6 km/sec
(c) 29 km/sec (d) 31.9 km/sec
53. A light year is equal to
(a) 6 million, million kms
(b) 7,50 million, million kms
(c) 9.50 million, million kms
(d) 11 million, million kms
54. The planet which has shortest year is
(a) Mercury (b) Jupiter
(c) Earth (d) Pluto
55. The planet which has longest year is
(a) Mercury (b) Venus
(c) Earth (d) Neptune