Sun Quiz Flashcards

1
Q

The core of the sun

A

A portion of the inner three layers of the sun’s interior and the hottest. Where nuclear fusion takes place.
- 27 million degrees Fahrenheit (15 million degrees Celsius)

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2
Q

The Radiation Zone

A

A portion of the inner three layers of the sun’s interior.
A region of very tightly packed gas where energy is transferred mainly in the form of electromagnetic radiation
-7,000,000°F (4,000,000°C)

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3
Q

The Convection Zone

A

A portion of the inner three layers of the sun’s interior.
Hot gases rise from the bottom of this zone and gradually cool as they approach the top of the sun’s surface.
- 4 million degrees F (2 million degrees C).

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4
Q

Nuclear Fusion

A

The process that happens in the core of the sun, where hydrogen atoms fuse to helium atoms, creating intense amounts of energy and heat.

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5
Q

Photosphere

A

The inner layer of the sun’s atmosphere. Responsible for giving off visible light.

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6
Q

Chromosphere

A

A layer of the sun’s atmosphere, where the sun get’s it red glow.
-the color sphere.

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7
Q

Corona

A

The faintest layer of the sun’s atmosphere which sends out electrically charged particles called solar wind.

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8
Q

Sunspots

A

Areas of gas on the sun’s surface that are cooler than the gas around them. Usually occur in groups.
it usually consists of two parts: an inner darker core, the umbra, and a surrounding less dark region, the penumbra.
They appear dark only in contrast with the hotter, brighter photosphere around them.
Cycles in intervals of 11 years.

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9
Q

Prominences

A

Reddish loops of gas that release from the sun;s surface and link different sunspots together.

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10
Q

Solar Flares

A

Intense energy gathered from preminces loops linking together that suddenly explodes into space. Can greatly increase solar wind.

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11
Q

Solar wind

A

Electrically charged particles that get released from the sun’s corona and can cause problems to surrounding planets.

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12
Q

Zeeman Effect

A

the splitting of a spectral line into two or more components of slightly different frequency when the light source is placed in a magnetic field

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13
Q

Coronal Holes

A

Large dark regions of the corona that are relatively cool and quiet. Release solar energy straight into space. Emits low levels of magnetic fields.

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14
Q

Coronal Mass-Ejections

A

a massive outburst of solar material from the Sun’s outer atmosphere.
Emits plasma

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15
Q

transition region

A

the part of the Sun where the rapid temperature rise occurs between the chromosphere and Corona

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16
Q

How does the Solar winds effect Earth?

A
  • the electromagnetic waves of solar winds created auroras when mixed with the earth’s atmosphere.
    -Can block/affect electric wiring systems on earth. Cause power outages.
    -GPS/transporational items can be affected
    -The earth’s mesosphere contracts/expands, causing electromagnetic disturbances.
  • heats the ionosphere, which expands and reaches farther into space. As a consequence, friction between the atmosphere and spacecraft increases, dragging satellites to lower altitudes.
    -Exposes passengers on a plane,pilots, and astronauts to large amounts of radiation.
17
Q

What is the sun’s dynamo

A

is a source of kinetic energy in the sun that churns in turbulent layers of ionized gas that creates magnetic fields.
Found in the convection zone of the sun.

18
Q

how does activity on the sun affect natural phenomena on earth

A

more solar flares will result creating an increase in geomagnetic storm activity for Earth

19
Q

How does the theory of the sun’s dynamo results in an average of 22-year solar activity cycle.

A

The number of sunspots keep on changing magnetic fields and poles every 11 years. Making a 22 year cycle of sun activity