Cosmology Unit Review

Front

The _________ is the collection of eight planets and their moons in orbit around the sun, together with smaller bodies in the form of asteroids, meteoroids, and comets.

Back

solar system

Front

The ________ is all of space, and all of the matter and energy that space contains.

Back

universe

Front

___________ is a branch of science that deals with celestial objects, space, and the physical universe as a whole.

Back

Astronomy

Front

_____________ is the science of the origin and development of the universe

Back

cosmology

Front

What is produced in main sequence stars due to nuclear fusion?

Back

helium and electromagnetic energy

Front

Where is Earth located?

Back

Milky Way Galaxy

Front

What can be determined by examining the Hertzsprung-Russell diagram?

Back

elements in the stars, the star's distance from earth, and the brightness of the star

Front

In ___________ smaller nuclei fuse together to become larger nuclei.

Back

nuclear fusion

Front

_______ states that the time it takes a planet to revolve around the Sun is proportional to its distance from the Sun.

Back

Law of Periods

Front

________ states that the path of each planet around the Sun is an ellipse.

Back

Law of Ellipse