Galaxies: A Journey Through the Universe

What are the three main types of galaxies?

• Round, square, and triangle

• Red, blue, and green

• Big, medium, and small

• Spiral, elliptical, and irregular

How do galaxies form?

• Gravitational interaction and merging of smaller structures such as gas clouds, stars, and dark matter.

• Galaxies form from the collision of asteroids and comets.

• Galaxies are created by the expansion of the universe.

• Galaxies form when stars explode and create new celestial bodies.

What is the Hubble sequence used for in galaxy classification?

• Determining the age of galaxies

• Categorizing galaxies by their distance from Earth

• Galaxy classification based on shapes and structures

• Classifying galaxies based on color

What are galaxy clusters and how are they formed?

• Galaxy clusters are formed by the gravitational pull of a single massive galaxy

• Galaxy clusters are formed by the explosion of a supernova within a galaxy

• Galaxy clusters are formed through the gradual accumulation of smaller galaxy groups and individual galaxies over billions of years.

• Galaxy clusters are formed by the collision of two galaxies resulting in the formation of a new cluster

Explain the concept of galaxy evolution.

• Galaxy evolution is the process by which galaxies change over time, including their formation, growth, interactions, and eventual fate.

• Galaxy evolution refers to the change in the color of galaxies as they age.

• Galaxy evolution is the process of stars moving closer together over time.

• Galaxy evolution is the study of how planets within a galaxy change over time.

What happens when galaxies collide?

• The collision causes the galaxies to completely disintegrate

• The stars within the galaxies rarely collide, but the gravitational interactions can distort the shape of the galaxies and trigger the formation of new stars.

• The stars within the galaxies collide and explode

• The galaxies merge into one giant galaxy

What is the Milky Way galaxy?

• The Milky Way galaxy is a new smartphone model.

• The Milky Way galaxy is the galaxy that contains our solar system.

• The Milky Way galaxy is a type of candy bar.

• The Milky Way galaxy is a popular dance move.

What is the role of dark matter in galaxy formation?

• Dark matter causes galaxy formation to occur at a faster rate

• Dark matter provides the gravitational pull necessary for galaxy formation.

• Dark matter has no impact on galaxy formation

• Dark matter prevents galaxy formation from happening

How do astronomers study distant galaxies?

• Astronomers study distant galaxies by listening to the sound waves they emit and analyzing the frequency to determine their characteristics.

• Astronomers study distant galaxies by using microscopes to observe the tiny particles emitted by these galaxies.

• Astronomers study distant galaxies using telescopes to observe the light emitted by these galaxies and analyze the light to determine their characteristics.

• Astronomers study distant galaxies by sending spacecraft to physically visit them and collect samples for analysis.