Astronomy Unit Exam

Front

What type of galaxy is characterized by a central bulge and spiral arms?

Back

Spiral galaxy.

Front

What happens to the lighted portion of the moon during the waning phases?

Back

The lighted portion we see grows smaller.

Front

List the following astronomical objects in order from smallest to largest: planets, solar system, galaxy, universe.

Back

Planets, solar system, galaxy, universe.

Front

What is the term for the longest day of the year, which has the most hours of daylight?

Back

Summer solstice.

Front

What astronomical event occurs when the Earth passes between the sun and the moon, causing the moon to appear darkened?

Back

Lunar eclipse.

Front

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

Back

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

Front

What is the significance of the summer solstice in terms of daylight?

Back

It marks the longest day of the year in the Northern Hemisphere.

Front

What is the term for the phase of the moon when it is fully illuminated?

Back

Full moon.

Front

What is the name of the galaxy that contains our solar system?

Back

The Milky Way galaxy.

Front

What is the phenomenon called when the moon passes directly between the Earth and the sun?

Back

Solar eclipse.