The Sun: Energy and Lifespan Flashcard

Front

What is the size and temperature classification of the Sun compared to other stars?

Back

The Sun is classified as medium size with medium temperature.

Front

What color are the coolest stars in the sky?

Back

Red.

Front

In which part of the Sun does the conversion of matter into energy occur?

Back

Core.

Front

How long does it take for energy from the Sun to reach the Earth?

Back

Approximately 8 minutes.

Front

What is the term for the heat transferred from the Sun to the Earth by waves?

Back

Radiation.

Front

What is the process called when energy is transferred through direct contact?

Back

Conduction.

Front

What is the process of heat transfer through fluids (liquids and gases)?

Back

Convection.

Front

What is the primary source of energy for life on Earth?

Back

The Sun.

Front

What is the Sun primarily composed of?

Back

Hydrogen and Helium.

Front

What is the significance of the Sun's core?

Back

It is where nuclear fusion occurs, converting hydrogen into helium and releasing energy.