Astronomy Part 6

Front

What is a spiral galaxy?

Back

A spiral galaxy is a type of galaxy characterized by its spiral arms and a central bulge, containing stars, gas, and dust.

Front

What is the correct order of astronomical objects from smallest to largest?

Back

Solar system, galaxy, universe.

Front

What defines a lenticular galaxy?

Back

A lenticular galaxy is an elliptical-shaped galaxy with little interstellar matter and no spiral arms.

Front

What type of galaxy is the largest known?

Back

Elliptical galaxies are the largest known galaxies.

Front

What is typically found at the center of most galaxies?

Back

A giant black hole is typically found at the center of most galaxies.

Front

What are the main components of a galaxy?

Back

Galaxies are primarily composed of stars, gas, dust, and dark matter.

Front

What distinguishes an elliptical galaxy from a spiral galaxy?

Back

Elliptical galaxies have an oval shape and lack spiral arms, while spiral galaxies have distinct arms and a central bulge.

Front

What is the Milky Way?

Back

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

Front

What is dark matter?

Back

Dark matter is a form of matter that does not emit light or energy, making it invisible and detectable only through its gravitational effects.

Front

What is the significance of a galaxy's central black hole?

Back

The central black hole plays a crucial role in the dynamics and evolution of the galaxy.