# Sun Quiz: Physical Properties & The 8 Layers

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Questions: 17 | Attempts: 5,864

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This quiz will determine the amount of knowledge acquired from this VFT exploring the Sun.

• 1.

### How does the Sun rotate?

• A.

Differentially

• B.

Clockwise

• C.

Counter-clockwise

• D.

Faster at the poles, slower at the equator

A. Differentially
Explanation
The Sun rotates differentially, which means that different parts of the Sun rotate at different speeds. This is because the Sun is not a solid object, but rather a ball of gas. The equator of the Sun rotates faster than the poles, causing a differential rotation. This differential rotation is due to the fact that the Sun is not a rigid body and its rotation is influenced by the movement of the gases and plasma within it.

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• 2.

### The light we see from the Sun comes from which layer?

• A.

Ionosphere

• B.

Troposphere

• C.

Photosphere

• D.

Corona

C. Photosphere
Explanation
The correct answer is photosphere. The photosphere is the outermost layer of the Sun's surface that emits visible light. It is the layer where most of the Sun's energy is generated through nuclear fusion. The other layers mentioned in the options, such as the ionosphere, troposphere, and corona, are not responsible for the visible light we see from the Sun.

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• 3.

### The temperature of the layer of gas that produces the visible light of the Sun is:

• A.

15 million K

• B.

5,800 K

• C.

90,000 K

• D.

12, 540 K

B. 5,800 K
Explanation
The correct answer is 5,800 K. This is the temperature of the layer of gas in the Sun that produces the visible light. The Sun's core is much hotter, but the visible light is emitted from the photosphere, which has a temperature of approximately 5,800 K.

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• 4.

### A loop of gas following the magnetic field lines between sunspots' poles is:

• A.

A coronal hole

• B.

A solar flare

• C.

A ray

• D.

A prominence

D. A prominence
Explanation
A prominence is a loop of gas that follows the magnetic field lines between sunspots' poles. It is a visible feature on the Sun's surface, often appearing as a bright arc or loop extending outwards from the Sun's surface. Prominences are formed by the interaction of the Sun's magnetic field and the plasma (ionized gas) in the Sun's atmosphere. They can last for days or even weeks and can release large amounts of energy in the form of solar flares or coronal mass ejections.

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• 5.

### How many planet Earths could fit inside the Sun?

• A.

1,000

• B.

Close to a billion

• C.

A little over a million

• D.

2,000

C. A little over a million
Explanation
The Sun is significantly larger than the Earth, with a diameter about 109 times greater. Therefore, if we calculate the volume of the Sun and divide it by the volume of the Earth, we can estimate how many Earths could fit inside the Sun. The volume of a sphere is calculated using the formula (4/3)Ï€r^3, where r is the radius. Based on this calculation, it is estimated that a little over a million Earths could fit inside the Sun.

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• 6.

### The density of the Sun is most similar to which object?

• A.

Jupiter

• B.

The Earth

• C.

Haleys Comet

• D.

Mercury

A. Jupiter
Explanation
The density of the Sun is most similar to Jupiter because both Jupiter and the Sun are composed mostly of hydrogen and helium gases. Jupiter is a gas giant, just like the Sun, and its composition is similar to that of a star. Both objects have a relatively low density due to their gaseous nature, making Jupiter the most similar in terms of density to the Sun.

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• 7.

### Energy generated by nuclear fusion occurs where?

• A.

• B.

Core

• C.

Chromosphere

• D.

Corona

B. Core
Explanation
Nuclear fusion, the process that powers stars, occurs in the core. The core is the central region of a star where the temperature and pressure are extremely high. In this intense environment, hydrogen atoms fuse together to form helium, releasing a tremendous amount of energy in the process. The radiation zone, chromosphere, and corona are other regions of a star, but they do not experience the same conditions necessary for nuclear fusion to occur.

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• 8.

### Which layer is energy transported by electromagnetic radiation?

• A.

Core

• B.

• C.

Photosphere

• D.

Corona

Explanation
Electromagnetic radiation is transported by the radiation zone. The radiation zone is the layer of the Sun where energy is transferred through the movement of photons. In this layer, photons are constantly absorbed and re-emitted by atoms, gradually making their way towards the surface of the Sun. This process takes millions of years, as the photons bounce around and interact with the particles in the radiation zone. Therefore, the radiation zone is responsible for the transport of energy through electromagnetic radiation.

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• 9.

### What happens in the photosphere?

• A.

• B.

Nuclear fusion

• C.

Nuclear fission

• D.

Energy carried by convection

Explanation
In the photosphere, which is the outermost layer of the Sun's surface, electromagnetic radiation can escape. This is because the photosphere is the layer where the Sun's energy is emitted in the form of light and other electromagnetic waves. The high temperature and density of the photosphere allow for the continuous release of electromagnetic radiation, which includes visible light that we can see. This radiation is produced by the nuclear fusion reactions happening in the Sun's core and is able to escape into space from the photosphere.

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• 10.

### Cool lower atmosphere:

• A.

Solarsphere

• B.

Borosphere

• C.

Crasmphere

• D.

Chromosphere

D. Chromosphere
Explanation
The term "chromosphere" refers to the cool lower atmosphere of the sun. The other options, solarsphere, borosphere, and crasmphere, are not valid scientific terms and do not describe the cool lower atmosphere of the sun. Therefore, the correct answer is chromosphere.

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• 11.

### What layer(s) can solar material escape into space and flow outward through the solar system?

• A.

• B.

Solar wind

• C.

• D.

The core & the chromosphere

B. Solar wind
Explanation
Solar material can escape into space and flow outward through the solar system through the solar wind. The solar wind is a stream of charged particles, mainly protons and electrons, that are ejected from the outer layer of the Sun's atmosphere, called the corona. These particles are accelerated to high speeds and can escape the gravitational pull of the Sun, carrying solar material with them. The solar wind is responsible for various phenomena in the solar system, such as the auroras on Earth and the tails of comets.

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• 12.

### In the radiation zone of the Sun the temperature is a little cooler than the core and as a result some atoms are able to remain intact. In this manner the energy that is generated in the core is passed from atom to atom through the:

• A.

Transition zone

• B.

Chromosphere

• C.

Core

• D.

Explanation
In the radiation zone of the Sun, the temperature is cooler than the core, allowing some atoms to remain intact. The energy generated in the core is then passed from atom to atom through the radiation zone.

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• 13.

### The exterior of the Sun is comprised of the _______ and the______, both of which can be studied using an array of telescopes and radiation detectors.

• A.

Solar contant and the surface

• B.

Solar oscillation and solar constant

• C.

Stars and the milkyway

• D.

Surface and the atmosphere

D. Surface and the atmosphere
Explanation
The correct answer is "surface and the atmosphere." The exterior of the Sun is made up of two main layers, the surface and the atmosphere. These layers can be studied using telescopes and radiation detectors to gather information about the Sun's composition, temperature, and other properties.

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• 14.

### The continuous rising and falling of hot and cool bubbles produces a pattern on the surface of the Sun that is referred to as:

• A.

Flares

• B.

Transuslation

• C.

Solar oscillation

• D.

Granulation

D. Granulation
Explanation
Granulation refers to the pattern on the surface of the Sun that is created by the continuous rising and falling of hot and cool bubbles. These bubbles are caused by convection currents in the Sun's outer layer, known as the photosphere. As hot plasma rises, it cools down and sinks back into the photosphere, creating a granular pattern. This pattern is visible in images of the Sun and is an important feature in studying its dynamics and energy transfer processes.

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• 15.

### Energy is transported through the photosphere by:

• A.

• B.

Xrays

• C.

• D.

UV rays

Explanation
Energy is transported through the photosphere by radiation. Radiation refers to the transfer of energy through electromagnetic waves. In the case of the photosphere, which is the outermost layer of the Sun's surface, energy is emitted in the form of electromagnetic radiation. This energy is then radiated outwards, carrying heat and light energy away from the Sun. X-rays and UV rays are also forms of electromagnetic radiation, but they are not the primary means by which energy is transported through the photosphere. Therefore, the correct answer is radiation.

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• 16.

### It takes light from the Sun how long to reach Earth:

• A.

24 hours

• B.

1 minute

• C.

10 seconds

• D.

Just over 8 minutes

D. Just over 8 minutes
Explanation
Light from the Sun takes just over 8 minutes to reach Earth. This is because light travels at a speed of approximately 299,792 kilometers per second. Since the distance between the Sun and Earth is about 149.6 million kilometers, it takes light approximately 8 minutes and 20 seconds to cover this distance. Therefore, it takes just over 8 minutes for sunlight to reach Earth.

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• 17.

### Most of the light that we receive from the Sun on earth is energy that was released by atoms in the:

• A.

Photosphere

• B.

Platasphere

• C.

Chromosephere

• D.

Corona

A. Photosphere
Explanation
The photosphere is the outermost layer of the Sun's atmosphere that emits visible light. It is the layer where most of the Sun's energy is released through nuclear fusion reactions in the core. This energy travels through the photosphere in the form of light and other electromagnetic radiation before reaching Earth. Therefore, it can be concluded that most of the light we receive from the Sun on Earth is energy that was released by atoms in the photosphere.

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• Current Version
• Sep 14, 2023
Quiz Edited by
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• Nov 24, 2008
Quiz Created by
Llbonner

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