Galaxies

What type of galaxy is this?

• Spiral
• Elliptical
• Irregular 
• Irrational

What type of galaxy is this?

• Spiral
• Elliptical
• Irregular
• Irrational

Tags

NGSS.MS-ESS1-2

How are galaxies held together.

• gas
• dust
• stars
• gravitational attraction

Tags

NGSS.HS-PS2-4

A Group of stars, and or star systems, dust and gas held together by gravity and isolated in space is known as:

• Universe

• Galaxy

• Solar System

• Planet

Which type of galaxy is the most common

• spiral

• giant elliptical

• irregular

• ford

Most of the mass of the Milky Way galaxy is thought to be...

• The black hole at its center
• Dark matter
• Dust and gas
• Main-sequence stars and planets

When will the Milky Way and Andromeda collide?

• It's happening now.
• In 1 billion years from now
• In 5 billion years from now
• It will never happen.

The name of our galactic cluster is "The Local Group".

• True
• False

What force holds the contents of galaxies together?

• The weak nuclear force
• The electromagnetic force
• Gravity
• The strong nuclear force

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

.......... are huge spherical areas where very little matter exists in the universe .

• voids

• clusters

• superclusters