Galaxies 8.9B

Front

What are the three main categories of galaxies?

Back

Spiral, Elliptical, Irregular

Front

Which arm of the Milky Way is known as the Perseus Arm?

Back

The Perseus Arm is one of the main spiral arms of the Milky Way.

Front

What type of galaxy is characterized by having a lot of gas and dust?

Back

Spiral Galaxy

Front

What is a common feature of irregular galaxies?

Back

They are typically smaller than other galaxies.

Front

What is the shape of the Milky Way galaxy?

Back

Bar-shaped

Front

Define a Spiral Galaxy.

Back

A type of galaxy characterized by its spiral structure, containing stars, gas, and dust.

Front

What distinguishes an Elliptical Galaxy?

Back

Elliptical galaxies have an oval shape and contain older stars with less gas and dust.

Front

What is an Irregular Galaxy?

Back

A galaxy that does not have a distinct regular shape and often contains young stars.

Front

Name a feature of Spiral Galaxies.

Back

They have well-defined arms that spiral outward from the center.

Front

What is the significance of the Milky Way's bar shape?

Back

The bar shape influences the motion of stars and gas within the galaxy.