Galaxies

Front

What is a galaxy?

Back

A galaxy is a large collection of stars, gas, and dust held together by gravity.

Tags

NGSS.MS-ESS1-2

Front

What force is responsible for holding the components of a galaxy together?

Back

Gravity is the force responsible for holding the stars, gas, and dust together in a galaxy.

Tags

NGSS.HS-PS2-4

Front

According to the Hertzsprung-Russell Diagram, which type of stars are the brightest?

Back

Blue stars are the brightest according to the Hertzsprung-Russell Diagram.

Front

How are galaxies held together?

Back

Galaxies are held together by gravitational attraction.

Tags

NGSS.HS-PS2-4

Front

What are the main components found in galaxies?

Back

Galaxies contain dust, gas, and stars.

Front

What is the role of dark matter in galaxies?

Back

Dark matter is thought to provide additional gravitational pull, helping to hold galaxies together.

Front

What is the difference between spiral and elliptical galaxies?

Back

Spiral galaxies have a flat, rotating disk with arms, while elliptical galaxies are more rounded and lack distinct features.

Front

What is the significance of the Milky Way galaxy?

Back

The Milky Way is the galaxy that contains our solar system and is a barred spiral galaxy.

Front

What is a galaxy cluster?

Back

A galaxy cluster is a large group of galaxies bound together by gravity.

Front

What is the process of galaxy formation?

Back

Galaxies form from the gravitational collapse of gas and dark matter in the early universe.