Q 1 – The least dense planet is
a) Earth
b) Jupiter
c) Saturn
d) Uranus
Ans – c) Saturn
Q 2 – Which of the following does not belong to the family of the solar system?
(a) Planet
(b) Galaxy
(c) Meteors
(d) Comet
Ans – (b) Galaxy
Q 3 – Which is the farthest planet of the solar system?
a) Neptune
b) Jupiter
c) Mercury
d) Earth
Ans – a) Neptune
Q 4 – The Halley’s Comet is seen after every
(a) 76 months
(b) 76 years
(c) 56 months
(d) 56 years
Ans – (b) 76 years
Q 5 – The tilting of the earth is responsible for
a) Change of the season
b) Change of days
c) Change of the sun rays
d) None of the options
Ans- a) Change of the season
Q 6 – Ursa Major is a
(a) star
(b) constellation
(c) seen only with telescope
(d) satellite
Ans – (b) constellation
Q 7 – Which planet has the largest number of satellites?
(a) Jupiter
(b) Saturn
(c) Mercury
(d) Mars
Ans – (b) Saturn
Q 8 – Stars appear to move from
a) East to west
b) West to east
c) North to south
d) South to west
Ans – a) East to west
Q 9 – Which unit is used to measure astronomical distances?
(a) Leap year
(b) Light year
(c) Century
(d) Sound year
Ans – (b) Light year
Q 10 – The stars forming a recognizable shape is called
(a) constellation
(b) system
(c) galaxy
(d) asteroids
Ans – (a) constellation
Q 11 – Which is the largest planet in solar system?
a) Jupiter
b) Mercury
c) Mars
d) Saturn
Ans – a) Jupiter
Q 12 – Which star is nearest to Earth?
(a) Pole star
(c) Orion
(b) Cassiopeia
(d) Sun
Ans – (d) Sun
Q 13 – On which planet the life exists?
a) Earth
b) Moon
c) Jupiter
d) None of the options
Ans – a) Earth
Q 14 – Which is the brightest planet in the universe?
a) Venus
b) Mercury
c) Earth
d) Saturn
Ans – a) Venus
Q 15 – What term is used for celestial bodies that revolve around the Sun in highly elliptical orbit?
(a) Comet
(b) Meteors
(c) Asteroids
(d) Planets
Ans – (a) Comet
Q 16 – The planet which is nearest to sun is
(a) Neptune
(b) Mercury
(c) Earth
(d) Mars
Ans – (b) Mercury
Q 17 – Which small objects revolve between the orbits of Mars and Jupiter?
(a) Satellites
(b) Comets
(c) Asteroids
(d) Meteorites
Ans – (c) Asteroids
Q 18 – The farthest planet of the solar system is
(a) Neptune
(b) Jupiter
(c) Mercury
(d) Earth
Ans – (a) Neptune
Q 19 – Which planet is called morning star or evening star?
(a) Venus
(b) Mars
(c) Jupiter
(d) Mercury
Ans – (a) Venus
Q 20 – Match the following
| Column A | Column B |
| (i) Nearest of the Sun | (a) Jupiter |
| (ii) Largest planet | (b) Star |
| (iii) Comets | (c) Artificial satellites |
| (iv) Alpha Centauri | (d) A constellation |
| (v) INSAT 3E | (e) Other than planets |
| (vi) Ursa major | (f) Neptune |
| (vii) Planet | (g) Mercury |
Ans –
| Column A | Column B |
| (i) Nearest of the Sun | (g) Mercury |
| (ii) Largest planet | (a) Jupiter |
| (iii) Comets | (e) Other than planets |
| (iv) Alpha Centauri | (b) Star |
| (v) INSAT 3E | (c) Artificial satellites |
| (vi) Ursa major | (d) A constellation |
| (vii) Planet | (f) Neptune |
Q 21 – Suppose a new planet is discovered between Uranus and Neptune. Its time period would be
(a) less than that of Neptune
(b) more than that of Neptune
(c) equal to that of Neptune or Uranus
(d) less than Uranus
Ans – (a) less than that of Neptune
Q 22 – Our galaxy is known as
(a) Earth galaxy
(b) Sun galaxy
(c) Milky Way
(d) Constellation
Ans – (c) Milky Way
Q 23 – If standing on the surface of the moon, we throw a ball upward, then the ball would
(a) directly fall down from the point it is released.
(b) hang in space.
(c) go up and then come back to the surface of the moon.
(d) keep going up never to come back.
Ans – (c) go up and then come back to the surface of the moon.
Q 24 – Which of the following is not a planet?
(a) Mercury
(b) Saturn
(c) Jupiter
(d) Great bear
Ans – (d) Great bear
Q 25 – Which is the largest, natural satellite in the solar system?
(a) The moon
(b) lo
(c) Eros
(d) Ganymede
Ans – (d) Ganymede
Q 26 – Which of the following planets can be seen with naked eyes?
(a) Mercury, Venus, Uranus, Jupiter
(b) Mars, Jupiter, Uranus, Neptune
(c) Mercury, Venus, Uranus, Pluto
(d) Mercury, Mars, Venus, Jupiter
Ans – (d) Mercury, Mars, Venus, Jupiter
Q 27 – Orion is a
(a) constellation
(b) star
(c) planet
(d) satellite
Ans – (a) constellation
Q 28 – ISRO stands for
(a) Indian Science Research Organization
(b) International Science Research Organization
(c) Indian Space Research Organization
(d) Inter-State Research Organization
Ans – (c) Indian Space Research Organization
Q 29 – Shooting stars are called
(a) asteroids
(b) galaxies
(c) meteors
(d) andromeda
Ans – (c) meteors
Q 30 – Path along which celestial bodies revolve around the Sun is called
(a) Orbit
(b) Path of rotation
(c) Line of motion
(d) Path of revolution
Ans – (a) Orbit
Q 31 – The planet farthest from the Sun is
(a) Uranus
(b) Neptune
(c) Saturn
(d) Mercury
Ans – (b) Neptune
Q 32 – What kind of a planet is Jupiter?
(a) Terrestrial planet
(b) Gas planet
(c) Asteroid
(d) Hottest planet
Ans – (b) Gas planet
Q 33 – If I am 13 years old, I have gone round the sun ___ times.
(a) Never gone round the sun
(b) 13
(c) 26
(d) Shall go round the sun when I shall be 15
Ans –(b) 13
Q 34 – The stars, planets, moon and objects in sky are called
(a) Solar system
(b) Celestial bodies
(c) Natural bodies
(d) Lunar bodies
Ans – (b) Celestial bodies
Q 35 – The least dense planet is
(a) Earth
(b) Jupiter
(c) Saturn
(d) Uranus
Ans – (c) Saturn
Q 36 – Nearest planet of the sun is:
(a) Neptune
(b) Mars
(c) Mercury
(d) Earth
Ans – (c) Mercury
Q 37 – ____ appears as a bright head with a long tail. The tail grows in size as it approaches the sun.
(a) Asteroid
(b) Comet
(c) Planet
(d) Meteor
Ans – (b) Comet
Q 38 – What is the approximate height of a geostationary satellite?
(a) 6,400 km
(b) 12,800 km
(c) 7,200 km
(d) 36,000 km
Ans – (d) 36,000 km
Q 39 – Fill in the blanks :
1. Star are celestial bodies of the universe and continuously emit heat and light.
2. Light year is the distance travelled by light in one year and is equal to 9.46 × 1012 kilometres.
3. Constellation is a group of stars arranged in a definite pattern.
4. Asteroids are minor planets that revolve around the Sun and are located between Mars and Jupiter.
5. Comets are very small sized bodies that revolve around the Sun in highly elliptical orbits and are characterized by a small head and a long tail.
6. Meteorites are small stony or metallic bodies (meteors) travelling in interplanetary space that actually reach the Earth’s surface.
7. First artificial satellite launched by India is Aryabhatta
8. Moon is the brightest object in the night sky.
9. The various shapes of the brightest part of the moon are called phases of moon.
10. Neptune is an extremely cold planet.
Q 40 – During a clear night sky, bright light streaks are often visible. They are called shooting stars. They are actually
(a) Falling stars
(b) Comet
(c) Meteors
(d) Planet
Ans – (c) Meteors
Q 41 – _____ was the first Indian satellite.
(a) INSAT
(b) EDUSAT
(c) IRS
(d) Aryabhatta
Ans – (d) Aryabhatta
Q 42 – Which of the following is the brightest non-star visible to the human eye?
(a) Moon
(b) Venus
(c) Mars
(d) Jupiter
Ans – (a) Moon
Q 43 – If Saturn is thrown into an ocean,
(a) It will float
(b) It will sink
(c) It will dissolve
(d) It will soak all water
Ans – (a) It will float
Q 44 – Who proved that the planets revolve around the sun in elliptical orbits?
(a) Isaac Newton
(b) Albert Einstein
(c) Johannes Kepler
(d) Galilei Galileo
Ans – (c) Johannes Kepler
Q 45 – It is difficult to observe Mars because
(a) It is the smallest planet of this universe
(b) It is too far away from our planet
(c) It is hidden by the glare of the sun
(d) None of the above
Ans – (c) It is hidden by the glare of the sun
Q 46 – Sky is not clear in cities due to
(a) Dust and smoke
(b) More population
(c) Bright light
(d) Larger area
Ans – (a) Dust and smoke
Q 47 – Ravi was looking for Venus in the sky at midnight. Mohan laughed at him because Venus
(a) Appears 1-3 hours after sunrise or 1-3 hours after sunset
(b) Appears 1-3 hours before sunrise or 1-3 hours after sunset
(c) Appears 1-3 hours before sunrise or 1-3 hours before sunset
(d) Appears 1-3 hours after sunrise or 1-3 hours before sunset
Ans – (b) Appears 1-3 hours before sunrise or 1-3 hours after sunset
Q 48 – Millions of stars together form
(a) Solar system
(b) Galaxy
(c) Constellation
(d) Comet
Ans – (b) Galaxy
Q 49 – Earlier we had 9 planets in our solar system of which one name has been eliminated as per IAU (2006). The planet is
(a) Uranus
(b) Neptune
(c) Pluto
(d) Earth
Ans – (c) Pluto
Q 50 – Light Year is
(a) Year full of light
(b) Year having light work
(c) Year which earth shall become lighter
(d) Distance travelled by light in 1 year
Ans – (d) Distance travelled by light in 1 year