Unit 3A Test: Sun and Solar System

Front

What is nuclear fusion?

Back

Nuclear fusion is the process where two hydrogen nuclei combine to form a helium nucleus, releasing energy. This process occurs in the core of the Sun.

Front

Where does nuclear fusion occur in the Sun?

Back

Nuclear fusion occurs in the core of the Sun.

Front

What is the primary source of energy for the Sun?

Back

The primary source of energy for the Sun is nuclear fusion.

Front

What causes planets to orbit the Sun?

Back

Planets orbit the Sun due to the Sun's gravitational pull.

Front

What is a Gas Giant?

Back

A Gas Giant is a large planet that is not primarily composed of solid matter, characterized by a thick atmosphere and low density, such as Jupiter and Saturn.

Front

What is the density of Planet X if it has a mass of 925 x 10^23 kg and a radius of 25,200 km?

Back

The density of Planet X is 1.3 g/cm³.

Front

What type of planet is Planet X?

Back

Planet X is classified as a Gas Giant.

Front

What are spectral lines?

Back

Spectral lines are dark or bright lines in a spectrum that indicate the presence of specific elements in a star's atmosphere.

Front

What color would a star with spectral lines from neutral calcium, iron, and magnesium likely be?

Back

The star would likely be an Orange Star.

Front

What is the role of the Sun's mass in the solar system?

Back

The Sun's mass creates a strong gravitational pull that keeps the planets in orbit around it.