Unit 5 Galaxy Review

Front

What is a black hole?

Back

A region in space where the gravitational pull is so strong that nothing, not even light, can escape from it.

Front

How does a black hole distort light?

Back

It makes a ring of light around itself.

Front

What is the measurement used by astronomers for distant objects?

Back

Light Years.

Front

What is the diameter of the Milky Way Galaxy in light years?

Back

100,000 light years.

Front

How many galaxies belong to the Local Group?

Back

Around 30.

Front

True/False: Galaxies are spread out evenly throughout the universe.

Back

False.

Front

What is the closest galaxy to the Milky Way?

Back

The Andromeda Galaxy.

Front

What is the main component of a galaxy?

Back

Stars, gas, dust, and dark matter.

Front

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

Back

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

Front

What is dark matter?

Back

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