Galactic Astronomy MCQs with Answers

Welcome to the Galactic Astronomy MCQs with Answers. In this post, we have shared Galactic Astronomy Online Test for different competitive exams. Find practice Galactic Astronomy Practice Questions with answers in Physics Tests exams here. Each question offers a chance to enhance your knowledge regarding Galactic Astronomy.

Galactic Astronomy Online Quiz

By presenting 3 options to choose from, Galactic Astronomy Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of Galactic Astronomy Questions and Answers and click over the correct answer.

• Test Name: Galactic Astronomy MCQ Quiz Practice
• Type: Quiz Test
• Total Questions: 40
• Total Marks: 40
• Time: 40 minutes

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Galactic Astronomy

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1 / 40

What is an irregular galaxy?

A galaxy with a spiral structure

A galaxy with an elliptical structure

A galaxy with no defined shape

2 / 40

What is the Local Group?

A group of galaxies that includes the Milky Way

A cluster of star clusters

A group of stars within the Milky Way

3 / 40

What are the oldest components of the Milky Way?

Globular clusters

Nebulae

Spiral arms

4 / 40

What is the cosmic distance ladder?

The classification system for stars

A series of techniques for determining the distances to celestial objects

The process of galaxy formation

5 / 40

What is the Hubble classification scheme?

A theory of star formation

A system for classifying galaxies

A method for measuring star brightness

6 / 40

What is the Tully-Fisher relation?

A method for classifying elliptical galaxies

A correlation between the luminosity and rotation speed of spiral galaxies

A relationship between galaxy mass and star count

7 / 40

What is a galactic bulge?

A densely packed group of stars at the center of a galaxy

A region of active star formation

The outer region of a galaxy

8 / 40

What are the small satellite galaxies of the Milky Way called?

Magellanic Clouds

Triangulum

Andromeda

9 / 40

What is a supercluster?

A cluster of stars

A large grouping of smaller galaxy clusters

A very large galaxy

10 / 40

What is at the center of the Milky Way?

A supermassive black hole

A large nebula

A giant star

11 / 40

What is an active galactic nucleus (AGN)?

A black hole

A cluster of young stars

A compact region at the center of a galaxy with much higher than normal luminosity

12 / 40

What is a Seyfert galaxy?

A type of elliptical galaxy

A type of irregular galaxy

A type of spiral galaxy with an extremely bright nucleus

13 / 40

What is the Fermi Paradox?

The classification of active galactic nuclei

The relation between galaxy mass and rotation speed

The apparent contradiction between the lack of evidence for extraterrestrial civilizations and various high estimates for their probability

14 / 40

What is a quasar?

A type of star

An extremely luminous active galactic nucleus

A type of spiral galaxy

15 / 40

What is the term for the bright, dense center of a galaxy?

Galactic halo

Galactic nucleus

Galactic disk

16 / 40

What are the main types of galaxies?

Spiral, elliptical, and irregular

Large, medium, and small

Active, passive, and quiescent

17 / 40

What is the term for a galaxy's brightness as seen from Earth?

Apparent magnitude

Absolute magnitude

Luminosity

18 / 40

What is the Virgo Cluster?

A large cluster of galaxies near the Milky Way

A cluster of stars in the Milky Way

A group of nebulae

19 / 40

What are the primary components of a galaxy?

Only stars

Stars, gas, and dark matter

Only planets

20 / 40

What is the term for the flat, rotating part of a spiral galaxy?

Galactic halo

Galactic disk

Galactic bulge

21 / 40

What type of galaxy is the Milky Way?

Irregular

Spiral

Elliptical

22 / 40

What is the rotation curve of a galaxy?

The shape of a galaxy

The orbital path of stars within a galaxy

The plot of rotational velocity versus distance from the center

23 / 40

What is galactic cannibalism?

The collision of stars in a galaxy

The process of a larger galaxy merging with a smaller one

The formation of a black hole

24 / 40

What is the term for the remnants of a massive star that has exploded?

White dwarf

Supernova remnant

Neutron star

25 / 40

What is the Milky Way?

A neighboring galaxy

A type of star

Our galaxy

26 / 40

What are spiral arms?

The central part of the galaxy

The halo of the galaxy

Regions of active star formation extending from the center of spiral galaxies

27 / 40

What is the closest large galaxy to the Milky Way?

Large Magellanic Cloud

Andromeda Galaxy

Triangulum Galaxy

28 / 40

What is the term for galaxies that are actively forming stars?

Starburst galaxies

Lenticular galaxies

Elliptical galaxies

29 / 40

What is the approximate diameter of the Milky Way?

100,000 light years

1,000,000 light years

10,000 light years

30 / 40

What is a barred spiral galaxy?

A spiral galaxy without a central bar

A spiral galaxy with a central bar-shaped structure

An elliptical galaxy

31 / 40

What is a lenticular galaxy?

A galaxy with a defined spiral structure

A galaxy with an irregular shape

A galaxy with a central bulge and disk but no spiral arms

32 / 40

What is the term for the movement of stars within a galaxy?

Stellar kinematics

Galactic rotation

Stellar evolution

33 / 40

What is a galaxy merger?

The formation of new stars within a galaxy

The splitting of a single galaxy

The collision and combination of two or more galaxies

34 / 40

What is a galactic halo?

The spiral arms of the galaxy

The core of the galaxy

A spherical region surrounding the galactic disk

35 / 40

What is an elliptical galaxy?

A type of galaxy with an ellipsoidal shape and little gas or dust

An irregular galaxy

A galaxy with spiral arms

36 / 40

What is the term for the true brightness of a galaxy?

Luminosity

Apparent magnitude

Stellar magnitude

37 / 40

What is dark matter?

Visible matter in space

A type of black hole

Matter that does not emit light or energy

38 / 40

What is a globular cluster?

A large planet

A spherical collection of stars

A group of nebulae

39 / 40

What is interstellar medium?

The central black hole of a galaxy

The matter that exists in the space between the stars in a galaxy

The dark matter in a galaxy

40 / 40

What is an extragalactic object?

Any planet in our solar system

Any star within our galaxy

Any object outside the Milky Way

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