Types of Galaxies

What is a galaxy?

• A system of planets

• An astronomical system of stars, stellar remnants, dust, gas, and planetary systems

• A single star

• A type of planet.

Tags

NGSS.MS-ESS1-2

What holds the components of a galaxy together?

• Magnetic force

• Electromagnetic force

• Gravitational force

• Nuclear force

Tags

NGSS.HS-PS2-4

Galaxies range in size from a few thousand stars to more than ________ stars.

• one hundred trillion.

• one million.

• one billion.

• one hundred billion.

Tags

NGSS.MS-ESS1-3

What are the three major types of galaxies?

• A) Elliptical, Spiral, Irregular

• B) Circular, Linear, Random

• C) Square, Triangular, Hexagonal

• D) None of the above.

Which type of galaxy is categorized by its spiral shape?

• A) Elliptical

• B) Spiral

• C) Irregular

• D) None of the above

Which type of galaxy does not have a defined shape?

• A) Elliptical

• B) Spiral

• C) Irregular

• D) None of the above

What shape does an elliptical galaxy have?

• Spiral

• Elliptical or egg-like

• Irregular

• Square

How does an elliptical galaxy appear?

• Rough and dim

• Smooth and bright

• Chaotic and dark

• Flat and dull

Stars found in elliptical galaxies are very ____.

• old.

• young.

• bright.

• distant.

Elliptical galaxies are the most ____ galaxies in the universe.

• common.

• rare.

• distant.

• massive.