Which method of heat transport is important close to the visible surface of the

Question

Which method of heat transport is important close to the visible surface of the Sun and can even be seen as granulation?

A)

Conduction

B)

Convection

C)

Radiation

D)

All three

Which of the following is a property of the envelope of the Sun? It is a region __________ .

Question 8 options:

A)

where nuclear fusion occurs

B)

that is hotter than the core

C)

that is at the center of the sun.

D)

where no energy production occurs

Which choice below lists the internal layers of the Sun from center to surface in the correct order?

Question 9 options:

A)

core, convection zone, photosphere, radiation zone

B)

core, radiation zone, convection zone, photosphere

C)

photosphere, radiation zone, convection zone, core

D)

convection zone, photosphere, radiation zone, core

Photons and neutrinos are both produced in the center of the Sun. Neutrinos take about __________ and photons about ___________ to reach the Sun's surface.

Question 10 options:

A)

both take about hundreds of thousands of years

B)

hundreds of thousands of years, a few seconds

C)

a few seconds, hundreds of thousands of years

D)

Both take only a few seconds

In which energy region of the electromagnetic spectrum does the Sun emit most of its energy?

Question 11 options:

X-ray

Infrared

Visible

Ultraviolet

Gamma Ray

Which of the following electron transitions between energy levels in a hydrogen atom will result in the emission of the highest energy photon?

2 to 4

5 to 6

same for all

7 to 1

6 to 3

Which of the following electron transitions between energy levels in a hydrogen atom will result in the absorption of the lowest frequency photon?

2 to 4

same for all

6 to 3

5 to 6

7 to 1

Which of the following electron transitions between energy levels in a hydrogen atom involves the photon with the largest speed?

Question 14 options:

7 to 1

same for all

6 to 3

5 to 6

2 to 4

To explain how spectral lines are produced, light is considered to _____________.

Question 15 options:

be composed of particles

all have the same energy

be composed of neutrinos

travel at different speeds

be composed of waves

Which spectrum below is closest to what the Sun and other stars produce?

Question 16 options:

All of the other choices

Emission Spectrum

Continuous Spectrum

Absorption Spectrum

None of the other choices

Each element produces a unique set of spectral lines because _____________.

Question 19 options:

the pattern of lines depends on the speed of the source

electron energy levels are different for each element

the elements are at different temperatures when the lines are produced

the speed of light is different for each element

some elements are opaque, others are not

The specific lines of an element in a red shifted stellar spectrum will __________________ compared to the spectral lines of the same element in the Sun's spectrum.

Question 20 options:

remain unchanged

have their spacing compressed so they appear closer together

have their spacing stretched out so they appear further apart

remain in the same pattern but appear at overall longer wavelengths

remain in the same pattern but appear at overall shorter wavelengths

Explanation / Answer

Question 7: which method of heat transport is close to the visible surface of the sun and can even be seen as granulation?

Answer: B. Convection

Question 8: Which of the following is a property of the envelope of the sun? It is a region

Answer: A. Where nuclear fusion occurs.

Question 9: which choice below lists the internal layer of the sun from center to surface in correct order?

Answer: B. CORE, RADIATION ZONE, CONVECTION ZONE, PHOTOSPHERE.

Question 10: Photons and neutrons are both produced in the center of the sun and neutrons take about ____ and Photons take about ____ to reach the Suns surface.

Answer: C. A few seconds, hundreds of thousands of years.

Question 11: In which energy region of the electromagnetic spectrum does the sun emit most of its energy?

Answer: Gamma ray

Question 12: Which of the following transitions between energy levels in a hydrogen atom will result in the emission of the highest energy Photon?

Answer: 7 to 1

Question 13: Energy levels in hydrogen atom results in the absorption of lowest frequency Photon

Answer: 6 to3

Question 14: Energy levels in a hydrogen atom involves the Photon with the largest speed?

Answer:

Question 15: To explain how spectral lines are produced light is considered to ____

Answer: have the same energy.

Question 15: which spectrum below is closest to the sun and other stars produce?

Answer: Continuous spectrum

Question 16: Each element produces a unique set of spectral limes because ____

Answer: electron energy levels are different for each element.

Question 20: The specific lines of an element in a red shifted stellar spectrum will ____ compared to the spectral lines of the same element in Suns spectrum.

Answer: remain in the same pattern but appear at overall long wavelengths.

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