Astronomy Final Exam Review -1

Front

What process creates energy from the sun?

Back

Nuclear fusion.

Front

How did the solar system form according to scientists?

Back

From a rotating disk of dust and gases.

Front

How do the diameters of terrestrial and Jovian planets compare?

Back

The diameters of the Jovian planets are much larger.

Front

Which layer of the sun is the hottest?

Back

Core.

Front

What holds comets together?

Back

Frozen gases.

Front

What is the main difference between terrestrial and Jovian planets?

Back

Terrestrial planets are rocky, while Jovian planets are gas giants.

Front

What is the Oort cloud?

Back

A spherical shell of icy objects surrounding the solar system.

Front

What is the primary component of the sun's core?

Back

Hydrogen undergoing nuclear fusion.

Front

What are the main characteristics of comets?

Back

Comets have elongated orbits and are composed of ice and dust.

Front

What is the photosphere?

Back

The visible surface of the sun.