What Happens To Energy In The Convection Zone Of The Sun?


What Happens To Energy In The Convection Zone Of The Sun??

What happens to energy in the Sun’s convection zone? Energy is transported outward by the rising of hot plasma and sinking of cooler plasma. … We are seeing hot gas rising and cool gas falling due to the convection that occurs beneath the surface.

What happens in the convection zone of the Sun?

In the convective zone the temperatures are cool enough—under 1 800 000 degrees Fahrenheit (1 000 000 degrees Kelvin)—that the atoms in the plasma there can absorb the photons coming outward from the Sun’s radiative zone. The plasma gets very hot and begins to rise upward out of the Sun.

What happens at the convective zone?

A region of turbulent plasma between a star’s core and its visible photosphere at the surface through which energy is transferred by convection. In the convection zone hot plasma rises cools as it nears the surface and falls to be heated and rise again.

How does heat energy move through the convection zone of the Sun quizlet?

Energy from the radiation zone passes into the convection zone the outer layer of the sun’s interior. In the convection zone energy is transferred outward mainly by convection currents. Hot gases in the convection zone rise toward the sun’s atmosphere while cooler gases sink downward.

How does a convection zone transfer energy?

Convection Zone of the Sun

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In the convection zone energy is transported by the movement of the plasma or the hydrogen and the helium ions. Plasma churns vigorously transporting heat energy to the surface of the Sun through convection.

How is energy transported in the convection zone?

The convection zone is the outer-most layer of the interior. It extends from a depth of 200 000 km up to the visible surface of the Sun. Energy is transported by convection in this region. The surface of the convection zone is where light (photons) is created.

How is energy transferred between the core and the convective zone of the Sun?

Energy is generated in the core the innermost 25%. This energy diffuses outward by radiation (mostly gamma-rays and x-rays) through the radiative zone and by convective fluid flows (boiling motion) through the convection zone the outermost 30%.

Does the Sun use convection?

The source of the Sun’s energy is the nuclear reactions that occur in its core. … This type of energy transport is convection. Convection motions within the solar interior generate magnetic fields that emerge at the surface as sunspots and loops of hot gas called prominences.

Does the Sun have a convective core?

In main sequence stars similar to the Sun which have a radiative core and convective envelope the transition region between the convection zone and the radiation zone is called the tachocline.

What is convection zone in the sun quizlet?

Convective zone. The region of the sun’s interior that is between the radiative zone and the photosphere and which energy is carried upward by convection. photosphere. the visible surface of the sun.

How does the sun transfer energy?

Energy is transferred from the sun to Earth via electromagnetic waves or radiation. Most of the energy that passes through the upper atmosphere and reaches Earth’s surface is in two forms visible and infrared light. … This transfer of energy can take place by three processes: radiation conduction and convection.

How does energy move through the core of the sun?

Energy travels out from the sun’s core in the form of a photon which is a bundle of electromagnetic waves. That’s radiation by the way. It’s why we call the part of the sun where this happens the radiative zone.

Why does a convective layer exist in the sun?

The rotation rate of the sun changes rapidly in the tachocline. At around 70% of the sun’s radius the convective zone begins. In this zone the sun’s temperature is not hot enough to transfer energy by thermal radiation. Instead it transfers heat by thermal convection through thermal columns.

How do movements in the convection zone contribute to solar flares?

The convection zone surrounds the radiative zone. In the convection zone hot material from near the Sun’s center rises cools at the surface and then plunges back downward to receive more heat from the radiative zone. This movement helps to create solar flares and sunspots which we’ll learn more about in a bit.

What does the chromosphere of the Sun do?

The layer above the photosphere is the chromosphere. The chromosphere emits a reddish glow as super-heated hydrogen burns off. But the red rim can only be seen during a total solar eclipse. … The chromosphere may play a role in conducting heat from the interior of the sun to its outermost layer the corona.

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What element will build up in the Sun’s core causing all fusion in the Sun to stop?

The Sun has about 5 billion years worth of hydrogen with which it can produce energy. When five billion years are up fusion in the Sun’s core will cease and gravity will cause the star to collapse.

Which layer of the Sun is where fusion occurs?


The Sun’s interior domain includes the core the radiative layer and the convective layer (Figure 2–1). The core is the source of the Sun’s energy the site of thermonuclear fusion.

What evidence of convection is visible on the surface of the Sun?

The convection current is occupied by the rising and sinking gas. Thus we can infer that the motion of the gas is from the numerous tiny bright regions surrounded by darker zone which is called granulation. Therefore granulation is the visible evidence from where we know Sun has a convection zone.

How does energy produced by fusion reactions in the core of the sun reach the Earth?

The fusion reactions in the Sun’s core generate energy in the form of heat gamma rays and neutrinos. … Light emitted from the Sun’s surface can then travel at the speed of light. Those photons which are emitted in the right direction reach the Earth about 8.5 minutes later.

How does energy get from the core to the Earth?

There are three main sources of heat in the deep earth: (1) heat from when the planet formed and accreted which has not yet been lost (2) frictional heating caused by denser core material sinking to the center of the planet and (3) heat from the decay of radioactive elements.

How does the energy from the core reach the surface of the earth?

Heat from the Earth’s core and radiation from the Sun is transferred to the surface of the Earth by conduction. Contact of the atmosphere with these warm surfaces transfers thermal energy which then heats up the rest of the air through convection.

How does convection affect the Sun?

Convection in the Sun

Hot plasma rises from the core towards the surface where it cools and sinks back towards the core. This process forms convection cells that we see as solar granules. The lighter color in the granules is the sun’s hot plasma that has risen to the surface.

What is the Sun powered by?

Solar energy is created by nuclear fusion that takes place in the sun. Fusion occurs when protons of hydrogen atoms violently collide in the sun’s core and fuse to create a helium atom. This process known as a PP (proton-proton) chain reaction emits an enormous amount of energy.

Where does the Sun get energy?

nuclear fusion

Like most stars the sun is made up mostly of hydrogen and helium atoms in a plasma state. The sun generates energy from a process called nuclear fusion. During nuclear fusion the high pressure and temperature in the sun’s core cause nuclei to separate from their electrons.

What happens to heat energy that reaches Earth from the sun?

The energy that reaches the Earth’s surface (primarily visible light) is absorbed by the Earth. This increases the temperature of the Earth and then that absorbed energy is released as heat.

Is convection heat transferred?

Convection. Convective heat transfer is the transfer of heat between two bodies by currents of moving gas or fluid. In free convection air or water moves away from the heated body as the warm air or water rises and is replaced by a cooler parcel of air or water.

What happens to the sun’s energy when it reaches Earth?

Energy released from the Sun is emitted as shortwave light and ultraviolet energy. When it reaches the Earth some is reflected back to space by clouds some is absorbed by the atmosphere and some is absorbed at the Earth’s surface. … Shortwave radiation reflected back to space by clouds.

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How does fusion in the Sun work?

Fusion is the process that powers the sun and the stars. It is the reaction in which two atoms of hydrogen combine together or fuse to form an atom of helium. In the process some of the mass of the hydrogen is converted into energy. … The sun and stars do this by gravity.

How does the Sun transfer energy to Earth quizlet?

Energy from the Sun is transferred to Earth through convection. Radiation requires a heated liquid to transfer energy. Nearly all of the energy that Earth receives from the Sun is used in photosynthesis. In the atmosphere water vapor condenses to form clouds.

Does Fusion happen in the Sun?

In the core of the Sun hydrogen is being converted into helium. This is called nuclear fusion. It takes four hydrogen atoms to fuse into each helium atom. During the process some of the mass is converted into energy.

Why are low mass stars convective?

Stars like the Sun (low mass stars) have temperatures in their outer envelopes which are low enough that hydrogen is not ionized. So higher energy photons from the interior of the star are easily absorbed by the hydrogen — the outer portions of low mass stars have high opacity and are thus convective.

What do you think happens on the Sun’s energy when it passes through the stratosphere?

Ozone in the lower part of the atmosphere acts as a greenhouse gas and is a major pollutant. Higher up in the stratosphere the ozone layer absorbs solar ultra-violet radiation and affects how much of the Sun’s heat is radiated back into space.

In which region of the Sun does energy move through circulating currents of gases?

In the Sun the convection zone extends from just below the photosphere to the radiative zone. In this region convection currents circulate the Sun’s energy to the surface.

How does energy makes its way from the nuclear core of the sun to its atmosphere?

Energy is created in the core of the Sun by nuclear fusion which releases energy that moves by radiation through the radiative zone. After that this energy moves through the convection zone by rising of hot gas and sinking of cool gas.

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