Tag: evolution of the universe

Questions Related to evolution of the universe

The large bright stars with a cool surface of ${2000}^{o}C$ to ${3000}^{o}C$, formed during the later stages of the evolution of a star like the sun as it runs out of ${H} {2}$ fuel at its center are __________.

social science universe and space the big bang and the early development of the universe origin of universe evolution of the universe

  1. red dwarf

  2. white dwarf

  3. red giants

  4. brown dwarf

Show answer
Correct Option: C
Explanation:

Large bright stars with a cool surface of 2000oC to 3000oC, formed during the later stages of the evolution of a star like the sun as it runs out of H2 fuel at its center are Red giants

Ans: Red giants

Horse head Nebula in Orion are dense clouds of molecular hydrogen which partially or completely absorb the light from the stars behind them. These are called ___________.

social science universe and space the big bang and the early development of the universe origin of universe evolution of the universe

  1. planetary nebula

  2. dark nebula

  3. reflection nebula

  4. emission nebula

Show answer
Correct Option: B
Explanation:

Horse head nebula are called dark nebula.

Ans: Dark Nebula

Orion nebula glows brightly because the gas in it is energised by the stars that have already formed within it, such types of nebula are called as ___________.

social science universe and space the big bang and the early development of the universe origin of universe evolution of the universe

  1. planetary nebula

  2. dark nebula

  3. reflection nebula

  4. emission nebula

Show answer
Correct Option: D
Explanation:

Ans: Emission nebula


_________ are the outer layers of a star that are lost when the star changes from a red giant to white dwarf.

social science universe and space the big bang and the early development of the universe origin of universe evolution of the universe

  1. planetary nebula

  2. dark nebula

  3. reflection nebula

  4. emission nebula

Show answer
Correct Option: A
Explanation:

Planetary Nebula are outer layers of a star that are lost when the star changes from red giant to white dwarf

Ans: Planetary Nebula

The laws governing the movement of celestial bodies are studied under the branch of physics called _________ .

social science universe and space the big bang and the early development of the universe origin of universe evolution of the universe

  1. spintronics

  2. astrophysics

  3. nuclear physics

  4. nano physics

Show answer
Correct Option: B
Explanation:

Astrophysics is the branch of astronomy concerned with nature and movement of celestial bodies.

Match the columns

$A$ $B$
(1) Stars (a) Pollution free
(2) Objects in the sky (b) Do not twinkle
(3) Planets (c) Twinkling bodies
(4) Clear sky (d) Celestial bodies
social science universe and space the big bang and the early development of the universe origin of universe evolution of the universe

  1. 1-c, 2-d, 3-b, 4-a

  2. 1-d, 2-a, 3-c, 4-b

  3. 1-b, 2-c, 3-a, 4-d

  4. 1-c, 2-a, 3-d, 4-b

Show answer
Correct Option: A
Explanation:

(1) Stars have their own light and are visible at night. Those are twinkling bodies
(2) Objects in the sky are together known as celestial bodies
(3) Planets do not have their own light. They get light from the stars. Hence they do not twinkle.
(4) When the sky is pollution free it becomes more clear and it is easy to view the heavenly bodies.

Aryabhatta was the first artificial satellite launched by ________. Fill in the blank
social science universe and space the big bang and the early development of the universe origin of universe evolution of the universe

  1. Russia

  2. India

  3. Germany

  4. USA

Show answer
Correct Option: B
Explanation:

Aryabhatta was launched by India in 1975.

The satellite was named on the indian scientist Aryabhatta.

The branch of science that deals with the study of universe is called:

social science universe and space the big bang and the early development of the universe origin of universe evolution of the universe

  1. Anthropology

  2. Astronomy

  3. Geology

  4. Universe

Show answer
Correct Option: B
Explanation:

Astronomy is the branch of science that deals with the study of universe.

It deals with observation of celestial objects and study them.

Fill in the blank.
Artificial __________ are man-made objects which orbit around the Earth.
social science universe and space the big bang and the early development of the universe origin of universe evolution of the universe

  1. comets

  2. satelites

  3. asteroids

  4. stars

Show answer
Correct Option: B
Explanation:

Artificial satellites are man-made objects which orbit around the Earth. 

For example, Sputnik 1 by Russia was an artificial satellite.

The planet also known as morning star is:

social science universe and space the big bang and the early development of the universe origin of universe evolution of the universe

  1. Mars

  2. Mercury

  3. Earth

  4. Venus

Show answer
Correct Option: D
Explanation:

Venus is visible few hours before the sunrise due to its peculiar alignment. 

Hence, it is called a morning star.