Physics ยท Science General

Astronomy and Cosmology

4,450 Questions

This topic provides questions on astronomy, cosmology, and the physical universe. It covers subjects like the Hubble sequence, constellations, dark matter, and stellar evolution. These questions help build a strong foundation for general science exam sections.

Galaxies and clustersConstellations and starsStellar evolutionSpace observatories

Astronomy and Cosmology Questions

Multiple choice

What is the name of the nebula that appears on a stamp issued by Japan in 1971?

  1. Eagle Nebula

  2. Crab Nebula

  3. Helix Nebula

  4. Sombrero Galaxy
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The Crab Nebula, a supernova remnant, was featured on a stamp issued by Japan in 1971 as part of the 'Astronomy' series.

Multiple choice

Which nebula is depicted on a stamp released by Australia in 1997?

  1. Whirlpool Galaxy

  2. Horsehead Nebula

  3. Sombrero Galaxy

  4. Eagle Nebula
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Whirlpool Galaxy, a spiral galaxy with prominent spiral arms, was featured on a stamp issued by Australia in 1997 as part of the 'Galaxies' series.

Multiple choice

What is the name of the nebula that appears on a stamp issued by Brazil in 1985?

  1. Orion Nebula

  2. Helix Nebula

  3. Ring Nebula

  4. Crab Nebula
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The Helix Nebula, a planetary nebula with a spiral structure, was featured on a stamp issued by Brazil in 1985 as part of the 'Astronomy' series.

Multiple choice

Which nebula is depicted on a stamp released by the United Kingdom in 1979?

  1. Eagle Nebula

  2. Sombrero Galaxy

  3. Whirlpool Galaxy

  4. Horsehead Nebula
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The Horsehead Nebula, a dark nebula resembling a horse's head, was featured on a stamp issued by the United Kingdom in 1979 as part of the 'Astronomy' series.

Multiple choice

What is the name of the nebula that appears on a stamp issued by Italy in 1981?

  1. Orion Nebula

  2. Helix Nebula

  3. Ring Nebula

  4. Sombrero Galaxy
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The Sombrero Galaxy, a spiral galaxy with a prominent dust lane, was featured on a stamp issued by Italy in 1981 as part of the 'Galaxies' series.

Multiple choice

Which nebula is depicted on a stamp released by Spain in 1992?

  1. Eagle Nebula

  2. Horsehead Nebula

  3. Crab Nebula

  4. Ring Nebula
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The Crab Nebula, a supernova remnant, was featured on a stamp issued by Spain in 1992 as part of the 'Astronomy' series.

Multiple choice

What is the name of the nebula that appears on a stamp issued by Poland in 1973?

  1. Orion Nebula

  2. Helix Nebula

  3. Sombrero Galaxy

  4. Whirlpool Galaxy
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The Sombrero Galaxy, a spiral galaxy with a prominent dust lane, was featured on a stamp issued by Poland in 1973 as part of the 'Galaxies' series.

Multiple choice

Which nebula is depicted on a stamp released by Hungary in 1986?

  1. Horsehead Nebula

  2. Orion Nebula

  3. Ring Nebula

  4. Crab Nebula
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Horsehead Nebula, a dark nebula resembling a horse's head, was featured on a stamp issued by Hungary in 1986 as part of the 'Astronomy' series.

Multiple choice

What is the current stage of the Sun's evolution?

  1. Main Sequence

  2. Red Giant

  3. White Dwarf

  4. Supernova
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Sun is currently in the main sequence stage, where it fuses hydrogen into helium in its core.

Multiple choice

What will happen to the Sun after it exhausts its hydrogen fuel?

  1. Become a Red Giant

  2. Become a White Dwarf

  3. Become a Neutron Star

  4. Become a Black Hole
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

After exhausting its hydrogen fuel, the Sun will expand and become a red giant.

Multiple choice

What is the expected fate of the Sun's core after it becomes a red giant?

  1. Collapse into a White Dwarf

  2. Explode as a Supernova

  3. Become a Black Hole

  4. Remain as a Red Giant
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The core of the Sun will eventually collapse under its own gravity, forming a white dwarf.

Multiple choice

What is the primary component of a white dwarf?

  1. Hydrogen

  2. Helium

  3. Carbon

  4. Oxygen
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

White dwarfs are primarily composed of carbon and oxygen.

Multiple choice

What is the process by which a white dwarf can explode as a supernova?

  1. Accretion from a companion star

  2. Gravitational Collapse

  3. Nuclear Fusion

  4. Radioactive Decay
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A white dwarf can explode as a supernova if it accretes mass from a companion star, exceeding the Chandrasekhar Limit.

Multiple choice

What is the remnant left behind after a supernova explosion?

  1. Black Hole

  2. Neutron Star

  3. White Dwarf

  4. Planetary Nebula
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A supernova explosion can leave behind a neutron star, which is a collapsed core of a massive star.

Multiple choice

What is the primary factor that determines the lifespan of a star?

  1. Mass

  2. Temperature

  3. Luminosity

  4. Composition
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The mass of a star is the primary factor that determines its lifespan.