Galaxies

Front

What type of galaxy has no defined pattern or shape?

Back

Irregular Galaxy: A galaxy that does not have a distinct regular shape, often appearing chaotic in form.

Front

What is the distance measurement used by astronomers for distant objects?

Back

Light Years: The distance that light travels in one year, used to measure astronomical distances.

Front

Order these objects from smallest to largest: Planets, Solar System, Galaxy, Universe.

Back

Planets, Solar System, Galaxy, Universe.

Front

What type of galaxy is characterized by spiral arms?

Back

Spiral Galaxy: A galaxy with a flat, rotating disk containing stars, gas, and dust, and often a central concentration of stars.

Front

What is the most abundant type of galaxy in the universe?

Back

Elliptical Galaxy: A type of galaxy that is smooth and rounded, with no distinct features like spiral arms.

Front

Define a galaxy.

Back

A galaxy is a massive system of stars, stellar remnants, interstellar gas, dust, and dark matter, bound together by gravity.

Front

What is the difference between a spiral galaxy and an elliptical galaxy?

Back

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

Front

What is a barred spiral galaxy?

Back

A barred spiral galaxy is a type of spiral galaxy that has a central bar-shaped structure composed of stars.

Front

What is the Milky Way?

Back

The Milky Way is the galaxy that contains our Solar System, characterized as a barred spiral galaxy.

Front

What is dark matter?

Back

Dark Matter: A form of matter that does not emit light or energy, making it invisible, but it exerts gravitational effects on visible matter.