universe & solar system section 5 Practice Questions Answers Test with Solutions & More Shortcuts

Question : 11

What is meant by the eclipse of Moon?

a) For any place, it is the average angle made by a line drawn from the moon to place and horizontal at midnight.

b) When the Moon comes between the Sun and the Earth, it causes the shadows of the Moon to fall on Earth.

c) It is path along which the moon revolves.

d) It occurs when the Earth comes between the Sun and the Moon and the centers of all three are on the same straight line.

Answer: (d)

Eclipse of moon occurs when the Earth comes between the Sun and Moon it causes the shadow of the Earth to fall on Moon. A lunar eclipse can only happen during a full moon.

Question : 12

Our solar system is located in which Galaxy?

a) Milky Way

b) Andromeda

c) Alpha Centauri

d) Proxima Centauri

Answer: (a)

Our solar system is located in Milky Way Galaxy. The Milky Way is the galaxy that contains our Solar System. Its name “milky” is derived from its appearance as a dim glowing band arching across the night sky in which the naked eye cannot distinguish individual stars.

Question : 13 [SSC SO 2008]

The four largest planets of the Solar System in decreasing size are

a) Jupiter, Saturn, Uranus and Neptune

b) Jupiter, Mercury, Saturn and Neptune

c) Mercury, Jupiter, Saturn and Neptune

d) Jupiter, Mercury, Saturn and Uranus

Answer: (a)

The diameter of

  • Jupiter is 1,42,984 km,
  • Saturn: 1,20,536 km,
  • Uranus: 51,118 km, and
  • that of Neptune is 49,528 km.

Question : 14

The planet which is called twin sister of the Earth is

a) Mars

b) Uranus

c) Venus

d) Mercury

Answer: (c)

The planet which is called twin sister of earth is Venus. Venus is known as the Earth’s twin because of its similar size, chemical composition and density.

However, due to its toxic atmosphere, Venus is not habitable.

Question : 15

The largest planet in our solar system is

a) Jupiter

b) Saturn

c) Uranus

d) Earth

Answer: (a)

The largest planet in our solar system is Jupiter. Jupiter is the fifth planet from the Sun and the largest planet in the Solar System.

It is a gas giant with mass one-thousandth of that of the Sun but is two and a half times the mass of all the other planets in the Solar System combined.

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