Stars Review

Front

What energetic particle of light is released during the second step of the proton-proton chain?

Back

Gamma ray light.

Front

Which step of the proton-proton chain involves the emission of a positron and a neutrino?

Back

Step 1.

Front

Electron neutrinos produced inside of the Sun change __________ on their way to the Earth through a process called neutrino oscillations.

Back

Flavors.

Front

The Sun is made mostly of...

Back

Hydrogen.

Front

What is the correct order of the spectral classes from hottest to coolest?

Back

OBAFGKM.

Front

What is the primary process by which the Sun generates energy?

Back

Nuclear fusion.

Front

What is the main byproduct of the proton-proton chain reaction in the Sun?

Back

Helium.

Front

What is the temperature at the core of the Sun?

Back

Approximately 15 million degrees Celsius.

Front

What are the two main elements that make up the Sun?

Back

Hydrogen and helium.

Front

What is the significance of neutrino oscillation in astrophysics?

Back

It shows that neutrinos have mass and can change types.