Question 1 (1 point)

Where do we find the transition region in the Sun?

Question 1 options:

1)	Between the core and the radiative zone

2)	Between the radiative zone and the convective zone

3)	Between the convective zone and the photosphere

4)	Between the photosphere and the chromosphere

5)	Between the chromosphere and the corona

Question 2 (1 point)

The volume of the Sun is approximately how many times larger than the volume of the Earth

Question 2 options:

1)	11 million

2)

109

3)	1.3 million

4)

46,000

5)

1000

Question 3 (1 point)

What are solar prominences?

Question 3 options:

1)	Relatively dark features on the surface of the photosphere.

2)	Regions in the chromosphere with higher densities and temperatures than their surroundings.

3)	A large, bright, gaseous feature that appears above the solar surface extending into the corona.

4)	A sudden and temporary outburst of electromagnetic radiation from an extended region of the solar surface.

5)	Solid objects in the solar atmosphere that emit calcium and hydrogen spectral lines.

Question 4 (1 point)

How do magnetic fields contribute to forming sunspots?

Question 4 options:

1)	The photosphere is only visible when magnetic fields are weak.

2)	Convection creates magnetic fields.

3)	Magnetic fields create convection.

4)	Stronger magnetic fields enhance convection.

5)	Stronger magnetic fields inhibit convection.

The reddish color of the chromosphere is caused by what phenomenon?

Question 5 options:

1)	Hydrogen absorption line

2)	Hydrogen emission line

3)	Helium absorption line

4)	Helium emission line

5)	Iron emission line

Question 6 (1 point)

What makes neutrinos most difficult to study?

Question 6 options:

1)	The particles are very small.

2)	The particles are very large.

3)	The particles have too little energy.

4)	The particles have too much energy.

5)	The particles rarely interact with matter.

6)	The particles interact too often with other particles.

Question 7 (1 point)

What is a joule?

Question 7 options:

1)	A unit of power

2)	A unit of mass

3)	A unit of energy

4)	A unit of temperature

5)	A unit of pressure

6)	A unit of momentum

Question 8 (1 point)

Why is a very small amount of mass equivalent to a very large amount of energy?

Question 8 options:

1)	Energy takes up more space than mass.

2)	Mass takes up more space than energy.

3)	Mass is easier to detect than energy.

4)	All forms of mass move at the speed of light.

5)	The speed of light is a very large number.

Question 9 (1 point)

Why doesn't the Sun produce a significant amount of energy through the carbon-nitrogen-oxygen cycle?

Question 9 options:

1)	The Sun is too cold.

2)	The Sun is too hot.

3)	The Sun is too large.

4)	The Sun is too small.

5)	The Sun doesn't contain any carbon, nitrogen or oxygen.

Question 10 (1 point)

What is plasma?

Question 10 options:

1)	A super dense solid.

2)	A super dense liquid.

3)	The primary elements making up the Sun and all other stars.

4)	A thick gooey substance.

5)	A hot, ionized gas.