I.
Multiple Choice Questions (MCQs)
Choose the correct option.
Question 1.
The planet which is nearest to sun is
(a) Neptune
(b) Mercury
(c) Earth
(d) Mars
Question 2.
Farthest planet of the solar system is
(a) Neptune
(b) Jupiter
(c) Mercury
(d) Earth
Question 3.
The largest planet in the solar system is
(a) Mercury
(b) Mars
(c) Jupiter
(d) Saturn
Question 4.
The brightest planet of the solar system is
(a) Mercury
(b) Venus
(c) Earth
(d) Saturn
Question 5.
Which planet is called morning star or evening star?
(a) Venus
(b) Mars
(c) Jupiter
(d) Mercury
Question 6.
Orion is a
(a) constellation
(b) star
(c) planet
(d) satellite
Question 7.
Which of the following is not a planet?
(a) Ursa Major
(b) Saturn
(c) Neptune
(d) Mercury
Question 8.
Our galaxy is known as
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(a) Earth galaxy
(b) Sun galaxy
(c) Milky way galaxy
(d) Constellation
Question 9.
Which star is nearest to the earth?
(a) Pole star
(b) Cassiopeia
(c) Orion
(d) Sun
Question 10.
How many stars does orion constellation have?
(a) 8
(b) 10
(c) 12
(d) 4
Question 11.
The Halley’s comet is seen after every
(a) 76 months
(b) 76 years
(c) 56 months
(d) 56 years
Question 12.
Stars appear to move from
(a) West to East
(b) East to West
(c) North to South
(d) South to West
Question 13.
The gap between the orbit of Mars and Jupiter have
(a) asteroids
(b) comets
(c) meteor
(d) meteorite
Question 14.
The planet which appears yellowish
(a) Asteroids
(b) Mars
(c) Uranus
(d) Saturn
Question 15.
The first outside orbit of the earth’s planet is
(a) Jupiter
(b) Mars
(c) Saturn
(d) Uranus
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Question 16.
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
Question 17.
If standing on the surface of 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.
Answer:
1. (b)
2. (a)
3. (c)
4. (b)
5. (a)
6. (a)
7. (a)
8. (c)
9. (d)
10. (a)
11. (b)
12. (b)
13. (a)
14. (d)
15. (b)
16. (a)
17. (c)
II. Fill in the Blanks
Fill in the blanks with suitable word/s.
1. First artificial satellite launched by India is ___________.
2. Stars have their own ___________.
3. ___________ is the brightest object in the night sky.
4. The various shapes of the brightest part of moon are called ___________.
5. ___________ and ___________ are the nearest planet to our Earth.
6. ___________ is the extremely cold planet.
7. There are total ___________ planets in our solar system.
8. The path of the planets is known as ___________.
9. ___________ is a group of stars arranged in a definite pattern.
10. ___________ star appears stationary near the northern horizon.
11. ___________ are the celestial bodies revolving around the planet.
12. ___________ is the distance travelled by light in one year.
13. ___________ are the bright objects which revolve around the sun.
14.___________ is the planet which is nearest to the Sun.
15. Milky Way Galaxy is also known as ___________.
Answer:
1. Aryabhatta
2. light
3. Moon
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4. phases of moon
5. Venus, Mars
6. Neptune
7. eight
8. orbit
9. Constellation
10. Pole
11. Satellites
12. Light year
13. Planets
14. Mercury
15. Akashganga
Question 1.
What is constellations? Name and explain some major constellations.
Answer:
The groups of stars that make an imaginary shape in the night sky are called constellations (nakshatras). They are
usually named after mythological characters, people, animals and object they resemble in shape. There are 88
constellations known so far.
Some major constellations are:
Ursa Major (Great Bear): It is one of the most well known constellations and the third largest one. It looks like a big
dipper. It is visible in the northern hemisphere. It has groups of seven relatively bright star.
Ursa Minor (Little Bear): It is ladle shape similar to Ursa Major. It also consists of seven stars. At the end of the Little
Bear’s tail is the pole star. It is the nearest bright star to the north celestial Pole.
Orion (Hunter): It has seven prominent stars. The three middle stars represent the belt of hunter and four stars form a
quadrilateral.
Cassiopeia: It is a constellation in the northern sky that looks like a distorted letter W or M. It is visible during the
winter in the early hours of night.
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