Sun Flashcards

1
Q

the star at the center of the Solar System

A

Sun

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2
Q

What are the layers of the sun

A

core,
radiation zone, and convection zone.

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3
Q

What are the layers of the suns atmosphere

A

photosphere, the chromosphere,
and the corona.

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4
Q

What si the temperature of the suns surface

A

5600-6000 degrees c

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5
Q

What is the Temperature of the suns corana

A

Around 3 million degrees c

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6
Q

What process fuels the sun

A

Nuclear fission

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7
Q

the energy released during nuclear fission or fusion, especially when used to generate electricity.

A

Nuclear fission

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8
Q

How does the sun rotate

A

Magnetic fields and poles

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9
Q

How old is the sun

A

4.5 billion years old

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10
Q

How long until the sun burns out

A

5 billion years

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11
Q

How much of the solar system’s mass is the sun?

A

99.8 percent

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12
Q

Sometimes the
loops in sunspot regions suddenly connect, releasing large amounts of
energy. The energy heats gas on the sun to millions of degrees Celsius, causing the gas to explode into space.

A

Solar flare

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13
Q

a giant cloud of solar plasma drenched with magnetic field lines that are blown away from the Sun during strong, long-duration solar flares and filament eruptions.

A

Coronal mass ejection

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14
Q

areas of gas on the sun that are cooler than the
gas around them.

A

Sunspot

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15
Q

Reddish loops of gas which link sunspots regions

A

Prominences

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16
Q

Parts of nuclear decay

A

Alpha decay, beta decay, gamma decay

17
Q

How can Alpha particles penetrate

A

they may not penetrate deeply but they can do lots of damage to whatever they hit. Released inside the human body they can damage cells causing illness & disease.

18
Q

How can beta particles penetrate

A

they’re smaller & lighter so they penetrate deeper into material they hit.

19
Q

How can gamma rays penetrate

A

Have no mass & no charge.
●Travel at the speed of light.
●Emitted by nucleus when alpha or beta particle is created.
●Takes thick blocks of concrete or lead to stop gamma rays.

20
Q

What do alpha, beta,and gamma release

A

Alpha, beta, and gamma

21
Q

disturbances of matter. Energy traveling through a medium (solid, liquid, gas) or space.

22
Q

Two types of waves and examples

A

Transverse - water waves

Longitudal - sound waves

23
Q

Parts of a wavelength

A

Trough and crest

24
Q

Meters/second, the speed of a wave

A

wave speed

25
The length of a wave, meter
Wavelength
26
Formula for finding volume of a wave
V=lf
27
Hertz
Frequency
28
the absolute value of the maximum displacement from a zero value during one period of an oscillation.
Amplitude
29
Lowest part of a wave
Trough
30
Top part of a wave
Crest
31
Frequencies of waves,EMS
Electromagnetic Spectrum
32
low frequency EM waves with wavelengths longer than 1mm. ■ These waves must be turned into sound waves by a radio before you can hear them
Radio waves
33
radio waves with wavelengths less than 30 cm and higher frequency & shorter
Microwaves
34
EM with wavelengths between 1mm & 750 billionths of a meter. ■ Used daily in remote controls, to read CD- ROMs
Infrared waves
35
Range of EM humans can see from 750 billionths to 00 billionths of a meter.
Visible light
36
EM waves with wavelengths from about 400 billionths to 10 billionths of a meter. ■ Have enough energy to enter skin cells
Ultraviolet waves
37
EM waves with shortest wavelength & highest frequency ■ High Energy- go through skin & muscle ■ High level exposure causes cancer
X-rays and gamma rays
38
What is the speed of light
3 x 108 m/s
39
How do you feel about this test
Así así