Electromagnetic Radiation and the Sun Flashcard

Front

What causes sunspots to appear dark?

Back

Their temperature is about 1500 degrees Celsius less than that of the surrounding solar surface.

Front

Describe the journey of electromagnetic radiation from the Sun to the Earth.

Back

It is created in the Sun’s core, travels through the Sun’s layers, reaches the surface, and then takes about 8 minutes and 20 seconds to reach Earth.

Front

What is a solar flare?

Back

A solar flare is a sudden eruption of increased brightness on the Sun's surface, often associated with sunspots.

Front

What are ultraviolet waves approximately equivalent in size to?

Back

Molecules.

Front

Which type of electromagnetic wave has the shortest wavelength?

Back

X-Ray.

Front

What is electromagnetic radiation?

Back

Electromagnetic radiation is energy that travels through space at the speed of light in the form of waves.

Front

What is the electromagnetic spectrum?

Back

The electromagnetic spectrum is the range of all types of electromagnetic radiation, from radio waves to gamma rays.

Front

What is the primary source of energy for the Earth?

Back

The Sun.

Front

What is the temperature of the Sun's surface?

Back

Approximately 5,500 degrees Celsius.

Front

What role do sunspots play in solar activity?

Back

Sunspots are indicators of magnetic activity on the Sun and can influence solar flares and coronal mass ejections.